"","X","timestamp","num.likes","num.comments","num.shares","posted.by","message","embeded.link","embeded.link.text","sample.comments","rbloggers.link","title","first.published","author","blog.name","blog.link","tags" "1",1,"Friday, January 6, 2012 at 9:08am","2 people like this","0","0","R bloggers","http://www.r-bloggers.com/survey-writing-package-vignette/","http://www.r-bloggers.com/survey-writing-package-vignette/","I am currently co-writing the vignette for the ChainLadder package and wonder what I should be focusing on. I have co-written the vignette of the googleVis package in the past and based it purely and what I thought would work. So, this is an experiment...","","http://www.r-bloggers.com/survey-writing-package-vignette/","Survey: Writing package vignette","January 5, 2012","Markus Gesmann"," mages' blog","http://lamages.blogspot.com/2012/01/survey-writing-package-vignette.html","R, survey, vignette" "2",2,"Wednesday, January 4, 2012 at 1:42pm","0","0","0","R bloggers","http://www.r-bloggers.com/user-2012-simple-abstract-helper/","http://www.r-bloggers.com/user-2012-simple-abstract-helper/","useR! 2012 has issued a call for abstracts! I've extended the WebSweave concept to offer a tool to create simple abstracts online, including those with \LaTeX markup, which may then be submitted at the conference website. Use the following link for the...","","http://www.r-bloggers.com/user-2012-simple-abstract-helper/","useR! 2012 Simple Abstract Helper","January 3, 2012","BioStatMatt"," BioStatMatt » R","http://biostatmatt.com/archives/1933","R, sweave, Technical, useR!2012" "3",3,"Tuesday, January 3, 2012 at 10:12pm","9 people like this","0","0","R bloggers","Nice:http://www.r-bloggers.com/coefplot-new-package-for-plotting-model-coefficients/ (This extends the methods described here:http://www.r-bloggers.com/visualization-of-regression-coefficients-in-r/ )","http://www.r-bloggers.com/coefplot-new-package-for-plotting-model-coefficients/","By Joseph Rickert Even to the practiced eye, looking at coefficients in R model summaries can be tedious. And, capturing information about the significance of coefficients from scores or maybe even hundreds of models in a way that makes writing the final report a bit easier is a time consuming and t...","","http://www.r-bloggers.com/coefplot-new-package-for-plotting-model-coefficients/","Coefplot: New Package for Plotting Model Coefficients","January 3, 2012","Joseph Rickert"," Revolutions","http://blog.revolutionanalytics.com/2012/01/new-package-for-plotting-model-coefficients.html","R, REvolution, statistics" "4",4,"Tuesday, January 3, 2012 at 9:39pm","8 people like this","0","1 share","R bloggers","Doctor Who Ratings (1963-Present) - plotted without contexthttp://www.r-bloggers.com/quick-r-plotting-doctor-who-ratings-1963-present-without-context/","http://www.r-bloggers.com/quick-r-plotting-doctor-who-ratings-1963-present-without-context/","Introduction First day back to work after New Year celebrations and my brain doesn’t really want to think too much. So I went out for lunch and had a nice walk in the park. Still had 15 minutes to kill before my lunch break was over and so decided to kill some time with a quick web [...]","","http://www.r-bloggers.com/quick-r-plotting-doctor-who-ratings-1963-present-without-context/","Quick-R: Plotting Doctor Who Ratings (1963-Present) without context","January 3, 2012","Tony Breyal"," Consistently Infrequent » R","http://tonybreyal.wordpress.com/2012/01/03/quick-r-plotting-doctor-who-ratings-1963-present-without-context/","doctor who, ggplot2, R, ratings" "5",5,"Tuesday, January 3, 2012 at 5:46pm","7 people like this","0","0","R bloggers","http://www.r-bloggers.com/voting-networks-in-the-danish-parliament/","http://www.r-bloggers.com/voting-networks-in-the-danish-parliament/","One of my Christmas presents was the book Beautiful Visualization. Chapter 8 by Andrew Odewahn is a very nice piece on visualizing the U.S Senate social graph. Odewahn basically builds an affinity network, where ties represent whether two senator have ...","","http://www.r-bloggers.com/voting-networks-in-the-danish-parliament/","Voting Networks in the Danish Parliament","January 2, 2012","The PolStat R Feed"," The PolStat R Feed","http://polstat.org/blog/2012/1/voting-networks-danish-parliament",NA "6",6,"Monday, January 2, 2012 at 9:28pm","6 people like this","0","2 shares","R bloggers","It seems people really like clicking on this article (shown on the top 20 R posts of 2012)http://www.r-bloggers.com/how-much-of-r-is-written-in-r/","http://www.r-bloggers.com/how-much-of-r-is-written-in-r/","My boss sent me an email (on my day off!) asking me just how much of R is written in the R language. This is very simple if you use R and a Unix-like system. It also gives me a good excuse to defend the title of this blog. It’s librestats, not projecteulerstats, afterall. So [...]","","http://www.r-bloggers.com/how-much-of-r-is-written-in-r/","How Much of R is Written in R?","August 26, 2011","wrathematics"," librestats » R","http://librestats.wordpress.com/2011/08/27/how-much-of-r-is-written-in-r/","R, Shell Scripting" "7",7,"Sunday, January 1, 2012 at 5:26pm","13 people like this","0","1 share","R bloggers","Top 20 R posts in 2011, from the R-blogosphere:http://www.r-bloggers.com/top-20-r-posts-of-2011-and-some-r-bloggers-statistics/ You can help R-bloggers grow even more this year by simply linking to it from your websites :) Happy new year!","http://www.r-bloggers.com/top-20-r-posts-of-2011-and-some-r-bloggers-statistics/","R-bloggers.com is now two years young. The site is an (unofficial) online R journal written by bloggers who agreed to contribute their R articles to the site. In this post I wish to celebrate R-bloggers’ second birthmounth by sharing with you: Links to the top 24 posts of 2011 Statistics on “how wel...","","http://www.r-bloggers.com/top-20-r-posts-of-2011-and-some-r-bloggers-statistics/","Top 20 R posts of 2011 (and some R-bloggers statistics)","January 1, 2012","Tal Galili"," R-statistics blog » R","http://www.r-statistics.com/2012/01/top-20-r-posts-of-2011-and-some-r-bloggers-statistics/","R, R community, R links" "8",8,"Thursday, December 29, 2011 at 12:19pm","7 people like this","At least 1 comment","1 share","R bloggers","Good news:http://www.r-bloggers.com/new-version-of-the-rcmdr-package/","http://www.r-bloggers.com/new-version-of-the-rcmdr-package/","","Luis Benites Sánchez Good news!!!Thursday, December 29, 2011 at 12:45pm · LikeUnlikeReply","http://www.r-bloggers.com/new-version-of-the-rcmdr-package/","New version of the Rcmdr package","December 29, 2011","Tal Galili",NA,NA,"gui, R GUI, Rcmdr" "9",9,"Wednesday, December 28, 2011 at 7:13am","6 people like this","0","2 shares","R bloggers","http://www.r-bloggers.com/homicides-in-mexico-2010/","http://www.r-bloggers.com/homicides-in-mexico-2010/","Recently the Mexican government released to the public the final homicide data for 2010, and as you can see from the chart Mexico has suffered from a steep rise in homicides since 2008, and in 2010 reached the highest homicide rate in recent histor...","","http://www.r-bloggers.com/homicides-in-mexico-2010/","Homicides in Mexico 2010","December 28, 2011","Diego"," Diego Valle's Blog","http://blog.diegovalle.net/2011/12/homicides-in-mexico-2010.html","Drug war, R" "10",10,"Monday, December 26, 2011 at 1:21pm","10 people like this","At least 1 comment","0","R bloggers","http://www.r-bloggers.com/an-r-wish-list-for-2012/",NA,NA,"Curtis McMinn I agree. As an R newbie, very little was easy to navigate or understand at first.Monday, December 26, 2011 at 2:05pm · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "11",11,"Saturday, December 24, 2011 at 2:22pm","3 people like this","0","0","R bloggers","http://www.r-bloggers.com/programming-traps-when-using-sample/","http://www.r-bloggers.com/programming-traps-when-using-sample/","Standard sample function works differently when it gets single element integer vector as opposed to longer vectors. This can lead to unexpected bugs in R code.Several times I had a problem with code similar to one given here:for (i in 1:4) {&...","","http://www.r-bloggers.com/programming-traps-when-using-sample/","Programming traps when using ""sample""","December 23, 2011","Bogumił Kamiński"," R snippets","http://rsnippets.blogspot.com/2011/12/programming-traps-when-using-sample.html",NA "12",12,"Friday, December 23, 2011 at 1:25pm","5 people like this","0","0","R bloggers","http://www.r-bloggers.com/googlevis-0-2-13-new-stepped-area-chart-and-improved-geo-charts/","http://www.r-bloggers.com/googlevis-0-2-13-new-stepped-area-chart-and-improved-geo-charts/","On 7th December Google published a new version of their Visualisation API. The new version adds a new chart type: Stepped Area Chart and provides improvements to Geo Chart. Now Geo Chart has similar functionality to Geo Map, but while Geo Map requires ...","","http://www.r-bloggers.com/googlevis-0-2-13-new-stepped-area-chart-and-improved-geo-charts/","googleVis 0.2.13: new stepped area chart and improved geo charts","December 23, 2011","mages"," mages' blog","http://lamages.blogspot.com/2011/12/googlevis-0213-new-stepped-area-chart.html","Geo Chart, googleVis, gvisGeoChart, gvisSteppedAreaChart, R" "13",13,"Thursday, December 22, 2011 at 7:23pm","19 people like this","0","0","R bloggers","http://www.r-bloggers.com/r-2-14-1-is-released-2/","http://www.r-bloggers.com/r-2-14-1-is-released-2/","","","http://www.r-bloggers.com/r-2-14-1-is-released-2/","R 2.14.1 is released","December 22, 2011","Tal Galili",NA,NA,"new release, R" "14",14,"Thursday, December 22, 2011 at 7:41am","17 people like this","At least 1 comment","12 shares","R bloggers","http://www.r-bloggers.com/basics-on-markov-chain-for-parents/","http://www.r-bloggers.com/basics-on-markov-chain-for-parents/","Markov chains is a very interesting and powerful tool. Especially for parents. Because if you think about it quickly, most of the games our kids are playing at are Markovian. For instance, snakes and ladders... It is extremely easy to write down th...","Jeff D. Hamann Freakin' Awesome!Thursday, December 22, 2011 at 2:27pm · LikeUnlike · 1ReplyR bloggers I agree :)Thursday, December 22, 2011 at 6:52pm · LikeUnlikeReplyAlan Navarro-Navarro Absolutely Great! I love RThursday, December 22, 2011 at 9:16pm · LikeUnlike · 1Reply","http://www.r-bloggers.com/basics-on-markov-chain-for-parents/","Basics on Markov Chain (for parents)","December 20, 2011","arthur charpentier"," Freakonometrics - Tag - R-english","http://freakonometrics.blog.free.fr/index.php?post/2011/12/20/Basic-on-Markov-Chain-(for-parents)","chain, ladders, Markov, matrix, R-english, Renglish, rstats, snakes, statistics" "15",15,"Thursday, December 22, 2011 at 7:40am","9 people like this","At least 1 comment","1 share","R bloggers","http://www.r-bloggers.com/maps-with-r-and-polygon-boundaries/","http://www.r-bloggers.com/maps-with-r-and-polygon-boundaries/","With R, it is extremely easy to draw maps. Let us start with something simple, like French regions. Baptiste mentioned on his blog that shapefiles can be downloaded from http://ign.fr/ website. Hence, if you extract the zip file, it is possible to ...","Wonsang Lucas You It's very interesting article! Thanks.Thursday, December 22, 2011 at 8:56am · LikeUnlike · 1Reply","http://www.r-bloggers.com/maps-with-r-and-polygon-boundaries/","Maps with R, and polygon boundaries","December 21, 2011","arthur charpentier"," Freakonometrics - Tag - R-english","http://freakonometrics.blog.free.fr/index.php?post/2011/10/27/Maps-with-R,-and-polygon-boundaries","IGN, Informatique / R, maps, maptools, plates, R-english, readShapePoly, readShapeSpatial, region, rstats, shapefile, shp, SpatialPolygons2PolySet, tectonic" "16",16,"Thursday, December 22, 2011 at 7:39am","0","0","0","R bloggers","http://www.r-bloggers.com/lehmann-primiality-test-in-r/","http://www.r-bloggers.com/lehmann-primiality-test-in-r/","After a small frustration with the limitations of R 16-bit intergers. I think i have worked out a solution. The issue was i was implementing a bone-headed solution to the modulo/exponent step. So to recap. The Lehmann primality test is a probabilistic ...","","http://www.r-bloggers.com/lehmann-primiality-test-in-r/","Lehmann Primiality Test in R","December 21, 2011","Command-Line Worldview"," Command-Line Worldview","http://notebookonthewebs.tumblr.com/post/14572091674","primality, prime numbers, R" "17",17,"Thursday, December 22, 2011 at 7:38am","9 people like this","0","1 share","R bloggers","http://www.r-bloggers.com/an-r-function-to-map-your-twitter-followers/","http://www.r-bloggers.com/an-r-function-to-map-your-twitter-followers/","I wrote a little function to make a personalized map of who follows you or who you follow on Twitter. The idea for this function was inspired by some plots I discussed in a previous post. I also found a lot of really useful code over at flowing data he...","","http://www.r-bloggers.com/an-r-function-to-map-your-twitter-followers/","An R function to map your Twitter Followers","December 21, 2011","leekgroup"," Simply Statistics","http://simplystatistics.tumblr.com/post/14568185310","DIY, R, twitter, visualization" "18",18,"Wednesday, December 21, 2011 at 10:24pm","16 people like this","0","0","R bloggers","Visualizing Twitter Retweets Graphs using Python, R and Gephihttp://www.r-bloggers.com/a-tool-chain-for-plotting-twitter-archive-retweet-graphs-%E2%80%93-py-r-gephi/","http://www.r-bloggers.com/a-tool-chain-for-plotting-twitter-archive-retweet-graphs-%E2%80%93-py-r-gephi/","Another set of stepping stones that provide a clunky route to a solution that @mhawksey has been working on a far more elegant expression of (eg Free the tweets! Export TwapperKeeper archives using Google Spreadsheet and Twitter: How to archive event hashtags and create an interactive visualization ...","","http://www.r-bloggers.com/a-tool-chain-for-plotting-twitter-archive-retweet-graphs-%E2%80%93-py-r-gephi/","A Tool Chain for Plotting Twitter Archive Retweet Graphs – Py, R, Gephi","December 21, 2011","Tony Hirst"," OUseful.Info, the blog... » Rstats","http://blog.ouseful.info/2011/12/21/a-tool-chain-for-plotting-twitter-archive-retweet-graphs-py-r-gephi/","Anything you want, rstats" "19",19,"Wednesday, December 21, 2011 at 3:38pm","0","View all 5 comments","0","Edin Villalobos Mora","Hi, I don't know where to ask quick (and embarrasing) newbie questions about R, so I'll do it here. I'm trying to save an R object (a data.frame or anova object) to a file, but the ""save"" command don't do it, it only saves the name of the object in the file. The help pages and books say it must work, but doesn't work for me. What stupid mistake I'm doing?",NA,NA,"Edin Villalobos Mora Mmm, it worked. Like I said, an embarrasing question. In moments like this I miss a formal training in programming, I' m usually lost in R for little details like this.Friday, December 23, 2011 at 9:08pm · LikeUnlikeReplyR bloggers You are not the only one Edin :) Just keep going - in time these things start to become second nature...Saturday, December 24, 2011 at 8:33am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "20",20,"Tuesday, December 20, 2011 at 10:38pm","10 people like this","At least 1 comment","1 share","R bloggers","http://www.r-bloggers.com/simulating-confidence-intervals/","http://www.r-bloggers.com/simulating-confidence-intervals/","As I am finishing up my thesis I have recently been plotting effects from many models. An important aspect of this is to show the uncertainty surrounding different estimates and effects. Following a paper by Gary King, Michael Tomz and Jason Wittenberg...","Ben Williams fantastic!Tuesday, December 20, 2011 at 10:47pm · LikeUnlikeReplyR bloggers I thought so too :)Tuesday, December 20, 2011 at 10:54pm · LikeUnlikeReplyS Edward Flanigan That is pretty freakin' coolWednesday, December 21, 2011 at 1:18am · LikeUnlike · 1Reply","http://www.r-bloggers.com/simulating-confidence-intervals/","Simulating Confidence Intervals","December 20, 2011","The PolStat Feed"," The PolStat Feed","http://polstat.org/blog/2011/12/simulating-confidence-intervals",NA "21",21,"Tuesday, December 20, 2011 at 1:04pm","9 people like this","0","0","R bloggers","http://www.r-bloggers.com/ripley-on-model-selection-and-some-links-on-exploratory-model-analysis/","http://www.r-bloggers.com/ripley-on-model-selection-and-some-links-on-exploratory-model-analysis/","This is really fun. I love how Ripley thinks, with just about every concept considered in broad generality while being connected to real-data examples. He’s a great statistical storyteller as well. . . . and Wickham on exploratory model analysis I came across Ripley’s slides in a reference from Hadl...","","http://www.r-bloggers.com/ripley-on-model-selection-and-some-links-on-exploratory-model-analysis/","Ripley on model selection, and some links on exploratory model analysis","December 17, 2011","andrew"," Statistical Modeling, Causal Inference, and Social Science » R","http://andrewgelman.com/2011/12/ripley-on-model-selection-and-some-links-on-exploratory-model-analysis/","R, statistical computing, Statistical graphics" "22",22,"Monday, December 19, 2011 at 7:30pm","20 people like this","0","0","R bloggers","A non-technical video talk about analyzing spatial data (R code available)http://www.r-bloggers.com/spatial-data-with-r/","http://www.r-bloggers.com/spatial-data-with-r/","On September 14th 2011 Dr Alec Stephenson gave a talk on exploring spatial data with R (see Meetup page). The video of the talk is now available online. The talk provides a non-mathematical and entirely equation-free talk on visualizing and … Continue reading →","","http://www.r-bloggers.com/spatial-data-with-r/","Spatial Data with R","December 19, 2011","jeromyanglim"," R User Groups","http://feedproxy.google.com/~r/RUserGroups/~3/Ab96IesXi9o/","RUG Melbourne, space, spatial statistics, video" "23",23,"Monday, December 19, 2011 at 10:42am","7 people like this","0","2 shares","R bloggers","Yay!http://www.r-bloggers.com/the-r-journal-volume-32-december-2011-is-out/","http://www.r-bloggers.com/the-r-journal-volume-32-december-2011-is-out/","","","http://www.r-bloggers.com/the-r-journal-volume-32-december-2011-is-out/","The R Journal (Volume 3/2, December 2011) is out","December 19, 2011","Tal Galili",NA,NA,"r journal" "24",24,"Monday, December 19, 2011 at 10:23am","0","0","0","R bloggers","For readers of R-bloggers, Manning publishing house is offering 38% discount off of all eBooks, pBooks and MEAPs, for links and code, see the 2nd paragraph here:http://www.r-bloggers.com/data-frame-objects-in-r-via-%E2%80%9Cr-in-action%E2%80%9D/","http://www.r-bloggers.com/data-frame-objects-in-r-via-%E2%80%9Cr-in-action%E2%80%9D/","The followings introductory post is intended for new users of R. It deals with R data frames: what they are, and how to create, view, and update them. This is a guest article by Dr. Robert I. Kabacoff, the founder of (one of) the first online R tutorials websites: Quick-R. Kabacoff has recently pu...","","http://www.r-bloggers.com/data-frame-objects-in-r-via-%E2%80%9Cr-in-action%E2%80%9D/","data.frame objects in R (via “R in Action”)","December 18, 2011","Tal Galili"," R-statistics blog » R","http://www.r-statistics.com/2011/12/data-frame-objects-in-r-via-r-in-action/","data frame, data frames, R, R book, R classes, R in action, R objects, R tutorial, tutorial" "25",25,"Sunday, December 18, 2011 at 10:18pm","9 people like this","0","0","R bloggers","http://www.r-bloggers.com/function-to-collect-geographic-coordinates-for-ip-addresses/","http://www.r-bloggers.com/function-to-collect-geographic-coordinates-for-ip-addresses/","Added the function IPtoXY here which collects geographic coordinates for IP-addresses.It uses a web-service at http://www.datasciencetoolkit.org// and works with the base R-packages. # System time to collect coordinates of 100 IP-addresses:> system....","","http://www.r-bloggers.com/function-to-collect-geographic-coordinates-for-ip-addresses/","Function to Collect Geographic Coordinates for IP-Addresses","December 17, 2011","Kay Cichini"," theBioBucket*","http://thebiobucket.blogspot.com/2011/12/function-to-collect-geographic.html","IP-Address, R" "26",26,"Friday, December 16, 2011 at 8:22pm","10 people like this","0","1 share","R bloggers","http://www.r-bloggers.com/to-sweave-or-not-to-sweave-that-is-the-question/","http://www.r-bloggers.com/to-sweave-or-not-to-sweave-that-is-the-question/","I am about to start writing up the manuscript of my recent biomath seminar (Act 3: Pineda-Krch. 2011. Cycles at the edge of existence: Emergence of quasi-cycles in strongly destabilizedecosystems.). While the slides for the talk were put together using Sweave … Continue reading →","","http://www.r-bloggers.com/to-sweave-or-not-to-sweave-that-is-the-question/","To Sweave, or not to Sweave, that is the question","December 16, 2011","Mario Pineda-Krch"," Mario's Entangled Bank » R","http://pineda-krch.com/2011/12/16/to-sweave-or-not-to-sweave-that-is-the-question/","manuscript, R, sweave, Writing" "27",27,"Thursday, December 15, 2011 at 9:34pm","2 people like this","At least 1 comment","0","R bloggers","MySQL with R using xampp http://www.r-bloggers.com/rmysql-using-the-latest-mysql-version/","http://www.r-bloggers.com/rmysql-using-the-latest-mysql-version/","In order to connect my R related stuff to a webserver and MySQL I went all the way from using xampp to setting up my own (W)AMPP (Apache MySQL PHP Perl) to finally back to xampp. And I’m quite happy about this very last switch to xampp! Why I like xampp it can be run … Continue reading »","Matthias Bunny Nice. Though striking to see what a mission that is if you aint got a nix OS.Thursday, December 15, 2011 at 9:53pm · LikeUnlike · 1Reply","http://www.r-bloggers.com/rmysql-using-the-latest-mysql-version/","RMySQL: using the latest MySQL version","December 15, 2011","songpants"," [R]appster","http://rappster.wordpress.com/2011/12/15/rmysql-using-the-latest-mysql-version/","mysql, Portable Apps, R, xampp" "28",28,"Thursday, December 15, 2011 at 1:07pm","0","0","0","Amalia Susana Haye","Hola a todos: Necesito documentos que hablen y describan el uso de GUIS en la enseñanza de la estadística mediante R. Ya escribí bastante, pero resulta que me piden más texto, y ya me cansé de buscar. Si alguien tiene algo ¿me lo adjunta? Gracias",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "29",29,"Thursday, December 15, 2011 at 6:12am","11 people like this","At least 1 comment","1 share","R bloggers","http://www.r-bloggers.com/create-maps-with-maptools-r-package/","http://www.r-bloggers.com/create-maps-with-maptools-r-package/","Baptiste Coulmont explains on his blog how to use the R package maptools. It is based on shapefile files, for example the ones offered by the French geography agency IGN (at départements and communes level). Some additional material like roads … Continue reading →","Casey Jung R has many wonderful functions.Thursday, December 15, 2011 at 1:38pm · LikeUnlike · 1Reply","http://www.r-bloggers.com/create-maps-with-maptools-r-package/","Create maps with maptools R package","December 13, 2011","Julyan Arbel"," Statisfaction » R","http://statisfaction.wordpress.com/2011/12/13/create-maps-with-maptools/","dataset, R" "30",30,"Wednesday, December 14, 2011 at 10:29pm","6 people like this","At least 1 comment","0","R bloggers","I love these things :)http://www.r-bloggers.com/unshorten-any-url-with-r/","http://www.r-bloggers.com/unshorten-any-url-with-r/","Introduction I was asked by a friend how to find the full final address of an URL which had been shortened via a shortening service (e.g., Twitter’s t.co, Google’s goo.gl, Facebook’s fb.me, dft.ba, bit.ly, TinyURL, tr.im, Ow.ly, etc.). I replied I had no idea and maybe he should have a look over on ...","Kai Feng Chew Yes! It's really cool! I changed a little bit to make it 2 lines to use the shorten function: load(""unshort.Rdata"") unshort(""ANY_SHORTEN_URL"") Example:http://cloudst.at/index.php?do=%2Fkafechew%2Fblog%2Funshorten-url-function%2FWednesday, December 14, 2011 at 10:34pm · LikeUnlike · 1ReplyTony Breyal ‎@Kai you might want to use the code from the updated version of the code on my blog because it now handles both https. It won't work with ""http://1.cloudst.at/myeg"" however because that one require the user to be registered (and I'll admit I had not thought of that use case)Thursday, December 15, 2011 at 12:03am · LikeUnlike · 1Reply","http://www.r-bloggers.com/unshorten-any-url-with-r/","Unshorten any URL with R","December 13, 2011","Tony Breyal"," Consistently Infrequent » R","http://tonybreyal.wordpress.com/2011/12/13/unshorten-any-url-created-using-url-shortening-services-decode_shortened_url/","dft.ba, R, RCurl, rstats, tinurl, url" "31",31,"Tuesday, December 13, 2011 at 8:06am","12 people like this","At least 1 comment","2 shares","R bloggers","http://www.r-bloggers.com/mapping-prosperity-in-france-with-r/","http://www.r-bloggers.com/mapping-prosperity-in-france-with-r/","The choropleth below (created by Baptiste Coulmont) is a sort of prosperity map of France: the blue areas have high levels of personal income (actually, median household income tax paid divided by the number of household members), while the red areas have the lowest: The map was created with the hel...","Lorenzo Braschi C'est magnifique!Tuesday, December 13, 2011 at 11:16am · LikeUnlikeReplyJeff D. Hamann It would be nice to have these for places like Iraq, Afghanistan, USA, and well... basically everywhere! Awesome.Tuesday, December 13, 2011 at 3:55pm · LikeUnlike · 1ReplyR bloggers I agree Jeff. I wish I could have done that for Israel.Tuesday, December 13, 2011 at 4:57pm · LikeUnlikeReply","http://www.r-bloggers.com/mapping-prosperity-in-france-with-r/","Mapping prosperity in France with R","December 12, 2011","David Smith"," Revolutions","http://blog.revolutionanalytics.com/2011/12/mapping-prosperity-in-france-with-r.html","graphics, R" "32",32,"Sunday, December 11, 2011 at 10:23pm","17 people like this","At least 1 comment","2 shares","R bloggers","useR2011 - slides and videos (all that are available online)http://www.r-bloggers.com/user-2011-slides-and-videos-%E2%80%93-on-one-page/","http://www.r-bloggers.com/user-2011-slides-and-videos-%E2%80%93-on-one-page/","Links to slides and talks from useR 2011 - all organized in one page.","Kaushal Chaudhary R -videos n slides of 2011..quite informative n useful..Monday, December 12, 2011 at 12:43am · LikeUnlike · 1Reply","http://www.r-bloggers.com/user-2011-slides-and-videos-%E2%80%93-on-one-page/","UseR! 2011 slides and videos – on one page","December 11, 2011","Tal Galili"," R-statistics blog » R","http://www.r-statistics.com/2011/12/user-2011-slides-and-videos-on-one-page/","R, R community, R links, R talks, useR, useR 2011" "33",33,"Sunday, December 11, 2011 at 10:13am","0","0","0","R bloggers","http://www.r-bloggers.com/rescuing-twapperkeeper-archives-before-they-vanish/","http://www.r-bloggers.com/rescuing-twapperkeeper-archives-before-they-vanish/","A couple of years or so ago, various JISC folk picked up on the idea that there might be value in them thar tweets and started encouraging the use of Twapperkeeper for archiving hashtagged tweets around events, supporting the development of that service in exchange for an open source version of the ...","","http://www.r-bloggers.com/rescuing-twapperkeeper-archives-before-they-vanish/","Rescuing Twapperkeeper Archives Before They Vanish","December 10, 2011","Tony Hirst"," OUseful.Info, the blog... » Rstats","http://blog.ouseful.info/2011/12/10/rescuing-twapperkeeper-archives-before-they-vanish/","Anything you want, rstats, twapperkeeper" "34",34,"Friday, December 9, 2011 at 10:29pm","6 people like this","0","0","R bloggers","http://www.r-bloggers.com/stability-of-classification-trees/","http://www.r-bloggers.com/stability-of-classification-trees/","Classification trees are known to be unstable with respect to training data. Recently I have read an article on stability of classification trees by Briand et al. (2009). They propose a quantitative similarity measure between two trees. The method is i...","","http://www.r-bloggers.com/stability-of-classification-trees/","Stability of classification trees","December 9, 2011","Bogumił Kamiński"," R snippets","http://rsnippets.blogspot.com/2011/12/stability-of-classification-trees.html",NA "35",35,"Friday, December 9, 2011 at 10:29pm","4 people like this","0","0","R bloggers","http://www.r-bloggers.com/running-your-r-and-latex-infrastructure-from-a-portable-usb-drive/","http://www.r-bloggers.com/running-your-r-and-latex-infrastructure-from-a-portable-usb-drive/","On my road to eventually running all of my programs off an USB device I’ve gotten a little bit closer yesterday thanks to input from Duncan Murdoch and Yihui Xie. Eventually running the entire Windows OS off a USB drive would be nice (not talking about running it as a Virtual Machine, but to have … ...","","http://www.r-bloggers.com/running-your-r-and-latex-infrastructure-from-a-portable-usb-drive/","Running your R and LaTeX Infrastructure from a portable USB Drive","December 9, 2011","songpants"," [R]appster","http://rappster.wordpress.com/2011/12/09/running-your-r-and-latex-infrastructure-from-a-portable-usb-drive/","LaTex, Lyx, Portable Apps, R" "36",36,"Friday, December 9, 2011 at 9:23am","0","At least 1 comment","0","Mukul Pal","Orpheus is looking for R Statistician: The project will entail manipulating databases, running statistical tasks, creating algorithms, authoring academic papers and building money management solutions. A trading experience, knowledge of options and an additional programming knowledge will be a plus.",NA,NA,"Mukul Pal please mail to support@orpheus.asiaFriday, December 9, 2011 at 9:23am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "37",37,"Wednesday, December 7, 2011 at 7:50pm","9 people like this","0","0","R bloggers","A Word Cloud with Spatial Meaninghttp://www.r-bloggers.com/what-comes-out-when-ecologists-do-linguists-work-maybe-a-word-cloud-with-spatial-meaning/","http://www.r-bloggers.com/what-comes-out-when-ecologists-do-linguists-work-maybe-a-word-cloud-with-spatial-meaning/","‎..Some time ago I did a word cloud for representing a Google Scholar search result. Tal Galili pointed me at a post by Drew Conway that expanded on the topic of word clouds lacking spatial meaning.As I am an ecologist, I immediately was thinking of tre...","","http://www.r-bloggers.com/what-comes-out-when-ecologists-do-linguists-work-maybe-a-word-cloud-with-spatial-meaning/","Page Not Found",NA,NA,NA,NA,NA "38",38,"Wednesday, December 7, 2011 at 7:46pm","12 people like this","At least 1 comment","0","R bloggers","integration C++ and R, on Windows 7, using Rcpphttp://www.r-bloggers.com/installing-rcpp-on-windows-7-for-r-and-c-integration/","http://www.r-bloggers.com/installing-rcpp-on-windows-7-for-r-and-c-integration/","Introduction Romain Francois presented an Rcpp solution on his blog to an old r-wiki optimisation challenge which I had also presented R solutions for previously on my blog. The Rcpp package provides a method for integrating R and C++. This allows for faster execution of an R project by recoding the...","Shinichi Takayanagi さっさとRcppは使えるようにしたいThursday, December 8, 2011 at 12:44pm · LikeUnlikeReply","http://www.r-bloggers.com/installing-rcpp-on-windows-7-for-r-and-c-integration/","Installing Rcpp on Windows 7 for R and C++ integration","December 7, 2011","Tony Breyal"," Consistently Infrequent » R","http://tonybreyal.wordpress.com/2011/12/07/installing-rcpp-on-windows-7-for-r-and-c-integration/","guide, install, R, Rcpp, rstats, tutorial" "39",39,"Wednesday, December 7, 2011 at 8:25am","8 people like this","0","0","R bloggers","http://www.r-bloggers.com/improved-moving-average-code-is-available-for-download/","http://www.r-bloggers.com/improved-moving-average-code-is-available-for-download/","Quantitative Finance, Technical Trading & Analysis. Fotis Papailias, Dimitrios Thomakos Fotis Quantitative Finance & Technical Analysis Improved Moving Average Code is available for download!Hi everyone, in the last few days we have received great feedback from you. Due to increasing demand we have ...","","http://www.r-bloggers.com/improved-moving-average-code-is-available-for-download/","Improved Moving Average Code is available for download!","December 7, 2011","Fotis"," Quantitative Finance & Technical Analysis » r-bloggers","http://www.quantf.com/fotis-papailias/improved-moving-average-code-is-available-for-download/332","forex-bloggers, R bloggers, Research" "40",40,"Tuesday, December 6, 2011 at 9:31pm","22 people like this","At least 1 comment","1 share","R bloggers","Short and simple - I love R+ggplot2 (+GGally):http://www.r-bloggers.com/example-9-17-much-better-pairs-plots/","http://www.r-bloggers.com/example-9-17-much-better-pairs-plots/","Pairs plots (section 5.1.17) are a useful way of displaying the pairwise relations between variables in a dataset. But the default display is unsatisfactory when the variables aren't all continuous. In this entry, we discuss ways to improve these dis...","Eshetu Janka I liked the R + ggplot progress every time with new plotings and diverse data visualizationTuesday, December 6, 2011 at 11:13pm · LikeUnlike · 1Reply","http://www.r-bloggers.com/example-9-17-much-better-pairs-plots/","Example 9.17: (much) better pairs plots","December 6, 2011","Nick Horton"," SAS and R","http://feedproxy.google.com/~r/SASandR/~3/pU_HNl9T2cY/example-917-much-better-pairs-plots.html","boxplot, generalized pairs plots, GGally package, ggplot2 package, Grammar of Graphics, Hadley Wickham, HELP data set, John Emerson, mosaic plot, pairs plots, scatterplot" "41",41,"Tuesday, December 6, 2011 at 5:24am","6 people like this","0","0","R bloggers","A nice overview of the Seattle branch of the International Open Data Hackathon.http://www.r-bloggers.com/international-open-data-hackathon/","http://www.r-bloggers.com/international-open-data-hackathon/","This past Saturday, I hung out at the Seattle branch of the International Open Data Hackathon. The event was hosted at the Pioneer Square office of Socrata, a small company that helps governments provide public open data. A pair of data analysts f...","","http://www.r-bloggers.com/international-open-data-hackathon/","International Open Data Hackathon","December 5, 2011","Christopher Bare"," Digithead's Lab Notebook","http://digitheadslabnotebook.blogspot.com/2011/12/international-open-data-hackathon.html","data mining, R" "42",42,"Friday, December 2, 2011 at 4:31pm","5 people like this","View all 4 comments","0","R bloggers","Preferred languages for predictive modelers competing at Kaggle (guess who is in the lead :) )http://www.r-bloggers.com/r-still-the-preferred-tool-of-predictive-modelers-competing-at-kaggle/","http://www.r-bloggers.com/r-still-the-preferred-tool-of-predictive-modelers-competing-at-kaggle/","As reported on the Kaggle blog No Free Hunch, R remains the preferred tool for data scientists seeking to win the prizes in the predictive modeling competitions: More than 30% of Kaggle competitors report using R for their analysis, up from 22% a year ago. R's flexibility and the breadth of packages...","R bloggers ‎:DSaturday, December 3, 2011 at 8:55am · LikeUnlikeReplyGene Leynes I'm suspicious of surveys when they're from potentially r friendly websites. But, this is great, it's a survey of people who are solving problems for money. Can't argue with thatSaturday, December 3, 2011 at 5:34pm · LikeUnlike · 1Reply","http://www.r-bloggers.com/r-still-the-preferred-tool-of-predictive-modelers-competing-at-kaggle/","R still the preferred tool of predictive modelers competing at Kaggle","November 29, 2011","David Smith"," Revolutions","http://blog.revolutionanalytics.com/2011/11/r-still-the-preferred-tool-of-predictive-modelers-competing-at-kaggle.html","predictive analytics, R, REvolution" "43",43,"Friday, December 2, 2011 at 8:25am","26 people like this","0","0","R bloggers","http://www.r-bloggers.com/fitting-distributions-with-r/","http://www.r-bloggers.com/fitting-distributions-with-r/","Fitting distribution with R is something I have to do once in a while.A good starting point to learn more about distribution fitting with R is Vito Ricci's tutorial on CRAN. I also find the vignettes of the actuar and fitdistrplus packag...","","http://www.r-bloggers.com/fitting-distributions-with-r/","Fitting distributions with R","December 1, 2011","mages"," mages' blog","http://lamages.blogspot.com/2011/12/fitting-distributions-with-r.html","Animation, fit distribution, fitdist, fitdistr, fitdistrplus, R" "44",44,"Thursday, December 1, 2011 at 3:21pm","8 people like this","0","2 shares","R bloggers","WOW - Using R and Wt for Web integration: a reimplementation of the standard GUI application of a standard density estimatehttp://www.r-bloggers.com/wicked-webapps-with-r-err-wt/","http://www.r-bloggers.com/wicked-webapps-with-r-err-wt/","A few months ago, I had blogged about using R inside of Qt. This used our RInside package for embedding the statistical programming environment and language R inside of a C++ application, and further relies on our Rcpp package for R and C++ integrati...","","http://www.r-bloggers.com/wicked-webapps-with-r-err-wt/","Wicked Webapps with R, err, Wt","November 30, 2011","Thinking inside the box"," Thinking inside the box ","http://dirk.eddelbuettel.com/blog/2011/11/30#rinside_and_wt",NA "45",45,"Wednesday, November 30, 2011 at 10:00am","8 people like this","At least 1 comment","0","R bloggers","The list of people making the core R distribution possible:http://www.r-bloggers.com/contributions-to-the-r-source/","http://www.r-bloggers.com/contributions-to-the-r-source/","One of the nice things about tracking the R subversion repository using git instead of subversion is you can do git shortlog -s -n which gives you 19855 ripley 6302 maechler 5299 hornik 2263 pd 1153 murdoch 813 iacus 716 luke 6...","عبد اللطيف موصللي R language Rules ;)Wednesday, November 30, 2011 at 10:24am · LikeUnlike · 2Reply","http://www.r-bloggers.com/contributions-to-the-r-source/","Contributions to the R source","November 29, 2011","rdpeng"," Simply Statistics","http://simplystatistics.tumblr.com/post/13499734759","R" "46",46,"Tuesday, November 29, 2011 at 6:53am","4 people like this","0","0","R bloggers","A post on CRANberries - a great resource for package updates:http://www.r-bloggers.com/a-story-of-life-and-death-on-cran-with-packages/","http://www.r-bloggers.com/a-story-of-life-and-death-on-cran-with-packages/","The Comprehensive R Archive Network, or CRAN for short, has been a major driver in the success and rapid proliferation of the R statistical language and environment. CRAN currently hosts around 3400 packages, and is growing at a rapid rate. Not too ...","","http://www.r-bloggers.com/a-story-of-life-and-death-on-cran-with-packages/","A Story of Life and Death. On CRAN. With Packages.","November 27, 2011","Thinking inside the box"," Thinking inside the box ","http://dirk.eddelbuettel.com/blog/2011/11/27#removed_cran_packages_monitored",NA "47",47,"Monday, November 28, 2011 at 12:09pm","16 people like this","0","1 share","R bloggers","http://www.r-bloggers.com/principal-component-analysis-pca-vs-ordinary-least-squares-ols-a-visual-explanation/","http://www.r-bloggers.com/principal-component-analysis-pca-vs-ordinary-least-squares-ols-a-visual-explanation/","Over at stats.stackexchange.com recently, a really interesting question was raised about principal component analysis (PCA). The gist was “Thanks to my college class I can do the math, but what does it MEAN?” I felt like this a number of times in my life. Many of my classes were focused on the techn...","","http://www.r-bloggers.com/principal-component-analysis-pca-vs-ordinary-least-squares-ols-a-visual-explanation/","Principal Component Analysis (PCA) vs Ordinary Least Squares (OLS): A Visual Explanation","September 16, 2010","JD Long"," Cerebral Mastication » R","http://www.cerebralmastication.com/2010/09/principal-component-analysis-pca-vs-ordinary-least-squares-ols-a-visual-explination/","Analysis, howto, R, Uncategorized" "48",48,"Monday, November 28, 2011 at 5:33am","13 people like this","At least 1 comment","0","R bloggers","Using R for Data Mining Competitions (Prezi from GTA R Users Group)http://www.r-bloggers.com/gta-r-users-group-%E2%80%93-using-r-for-data-mining-competitions/","http://www.r-bloggers.com/gta-r-users-group-%E2%80%93-using-r-for-data-mining-competitions/","Here are the presentation slides I used for my talk on “Using R for Data Mining Competitions” at Ryerson University as part of the Greater Toronto Area (GTA) R User’s Meetup Group. Presentation (Prezi) Meetup Event page Special thanks to Anthony Goldbloom from Kaggle and various competition winners ...","Sumit Bardhan A great presentation : thanks for sharing !Tuesday, November 29, 2011 at 2:59am · LikeUnlike · 1Reply","http://www.r-bloggers.com/gta-r-users-group-%E2%80%93-using-r-for-data-mining-competitions/","GTA R Users Group – Using R for Data Mining Competitions","November 27, 2011","Jon"," Computational Mathematics » R","http://www.compmath.com/blog/2011/11/gta-r-users-group-using-r-for-data-mining-competitions/","data mining, General, GTA R Users, Kaggle, prezi, R" "49",49,"Sunday, November 27, 2011 at 3:35am","8 people like this","0","0","R bloggers","A great R package for dealing with data validation:http://www.r-bloggers.com/deductive-imputation-with-the-deducorrect-package/","http://www.r-bloggers.com/deductive-imputation-with-the-deducorrect-package/","Missing data hinders statistical analyses. Estimating missing values (imputation) prior to analysis is one way to deal with that. In some cases however, the missings need not be estimated at all, since they can be derived with certainty from other … Continue reading →","","http://www.r-bloggers.com/deductive-imputation-with-the-deducorrect-package/","Deductive imputation with the deducorrect package","November 26, 2011","mark"," Mark van der Loo","http://www.markvanderloo.eu/yaRb/2011/11/26/deductive-imputation-with-the-deducorrect-package/","data correction methods, Imputation, R" "50",50,"Saturday, November 26, 2011 at 11:02am","2 people like this","0","0","R bloggers","Way to go google, way to François Romain:http://www.r-bloggers.com/int64-64-bit-integer-vectors-for-r/","http://www.r-bloggers.com/int64-64-bit-integer-vectors-for-r/","The Google Open Source Programs Office sponsored me to create the new int64 package that has been released to CRAN a few days ago. The package has been mentionned in an article in the open source blog from Google. The package defines classes i...","","http://www.r-bloggers.com/int64-64-bit-integer-vectors-for-r/","int64: 64 bit integer vectors for R","November 26, 2011","romain francois"," Romain Francois, Professional R Enthusiast - Tag - R","http://romainfrancois.blog.free.fr/index.php?post/2011/11/26/int64:-64-bit-integer-vectors-for-R","cplusplus, cran, int64, package, R, R package, Rcpp, RProtoBuf" "51",51,"Saturday, November 26, 2011 at 8:42am","8 people like this","0","0","R bloggers","Great hack for sending e-mails using R:http://www.r-bloggers.com/sending-email-from-r-sing-sendemail/","http://www.r-bloggers.com/sending-email-from-r-sing-sendemail/","Like a lot of other R users I’ve felt the need for sending email from R. I haven’t surveyed CRAN for such a package but looked for the possibility of sending command line email in Windows. Found a nice application called sendEmail that can be found here Below are code snippets in R that will [...]","","http://www.r-bloggers.com/sending-email-from-r-sing-sendemail/","Sending Email from R (sing sendEmail)","November 25, 2011","indiacrunchin"," indiacrunchin » R","http://indiacrunchin.wordpress.com/2011/11/25/sending-email-from-r-sing-sendemail/","R" "52",52,"Thursday, November 24, 2011 at 10:31pm","9 people like this","0","0","R bloggers","http://www.r-bloggers.com/bringing-64-bit-data-to-r/","http://www.r-bloggers.com/bringing-64-bit-data-to-r/","The R programming language has become one of the standard tools for statistical data analysis and visualization, and is widely used by Google and many others. The language includes extensive support for working with vectors of integers, numerics (doubl...","","http://www.r-bloggers.com/bringing-64-bit-data-to-r/","Bringing 64-bit data to R","November 24, 2011","Stephanie Taylor"," Google Open Source Blog","http://google-opensource.blogspot.com/2011/11/bringing-64-bit-data-to-r.html","dremel, protocol buffers, R, Rcpp, RProtoBuf" "53",53,"Thursday, November 24, 2011 at 8:24am","10 people like this","At least 1 comment","0","R bloggers","A great new project - making Sweave S4 methods to turn common statistical tests into LaTeX inline objects. Read more for details and examples:http://www.r-bloggers.com/the-%E2%80%98swst%E2%80%99-package-to-print-statistical-results-in-sweave/",NA,NA,"Sumit Bardhan Good article : thanks for sharingThursday, November 24, 2011 at 9:27am · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "54",54,"Wednesday, November 23, 2011 at 8:42pm","7 people like this","At least 1 comment","1 share","R bloggers","Very cool:http://www.r-bloggers.com/an-r-function-to-analyze-your-google-scholar-citations-page/","http://www.r-bloggers.com/an-r-function-to-analyze-your-google-scholar-citations-page/","Google scholar has now made Google Scholar Citations profiles available to anyone. You can read about these profiles and set one up for yourself here. I asked John Muschelli and Andrew Jaffe to write me a function that would download my Google Scholar...","Matthieu Vignes Ultime, ça se communique au labo : les admins sous R !!Thursday, November 24, 2011 at 10:36am · LikeUnlikeReplyMatthew Browne Is there anything you can't do with R!?Thursday, November 24, 2011 at 11:15am · LikeUnlike · 1ReplyR bloggers Matthew - I would love to know how to get http://www.google.com/insights/search/ results using R. But I am sure it can be done (just that no-one has done it yet). Cheers :)Thursday, November 24, 2011 at 1:11pm · LikeUnlikeReply","http://www.r-bloggers.com/an-r-function-to-analyze-your-google-scholar-citations-page/","An R function to analyze your Google Scholar Citations page","November 23, 2011","leekgroup"," Simply Statistics","http://simplystatistics.tumblr.com/post/13203811645","DIY, Google Scholar Citations, R, web scraping" "55",55,"Wednesday, November 23, 2011 at 10:42am","4 people like this","At least 1 comment","1 share","R bloggers","A good point made by David Smith regarding big data and R:http://www.r-bloggers.com/why-we-need-to-deal-with-big-data-in-r/","http://www.r-bloggers.com/why-we-need-to-deal-with-big-data-in-r/","Responding to the birth rates analysis in the post earlier this week on big-data analysis with Revolution R Enterprise, Luis Apiolaza asks at the Quantum Forests blog, do we really need to deal with big data in R? My basic question is why would I want to deal with all those 100 million records direc...","Ym Guo Excellent!Wednesday, November 23, 2011 at 11:10am · LikeUnlikeReplySebastian Cl very greatWednesday, November 23, 2011 at 1:45pm · LikeUnlikeReply","http://www.r-bloggers.com/why-we-need-to-deal-with-big-data-in-r/","Why we need to deal with big data in R","November 22, 2011","David Smith"," Revolutions","http://blog.revolutionanalytics.com/2011/11/why-we-need-to-deal-with-big-data-in-r.html","Big Data, R, statistics" "56",56,"Monday, November 21, 2011 at 10:02pm","0","At least 1 comment","0","Claudia Polo","Hi, Does anyone knows how to create in R ""count if greater than zero"" ? I have several values in several columns, and I want to know for each column, how many values are greater than zero. Thank you.",NA,NA,"R bloggers if the data is in an object called X. you can use: apply(X, 2, function(cc) {sum(cc>0)})Monday, November 21, 2011 at 10:06pm · LikeUnlikeReplyClaudia Polo Thank you a lot.Monday, November 21, 2011 at 10:27pm · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "57",57,"Monday, November 21, 2011 at 1:06pm","0","0","0","R bloggers","http://www.r-bloggers.com/indexing-nested-lists/","http://www.r-bloggers.com/indexing-nested-lists/","I’ve long searched for a somewhat efficient approach to indexing nested lists and/or environments and here’s my best solution so far. For me, being able to compute such an index is the crucial part in order to actually manage such nested structures (which are very helpful in a lot of scenarios where...","","http://www.r-bloggers.com/indexing-nested-lists/","Indexing Nested Lists","November 20, 2011","songpants"," [R]appster","http://rappster.wordpress.com/2011/11/20/indexing-nested-lists/","indexing, lists, nested, R" "58",58,"Monday, November 21, 2011 at 7:25am","3 people like this","0","0","R bloggers","http://www.r-bloggers.com/popular-baby-names-walk-through-part-1-web-scrapping-and-ggploting/","http://www.r-bloggers.com/popular-baby-names-walk-through-part-1-web-scrapping-and-ggploting/","This is the first walk-through I have posted. Reading these types of posts has been incredibly helpful as I have been learning R and other useful tools in the Unix universe. Hopefully you find it helpful. First, I have been watching Google Python Video...","","http://www.r-bloggers.com/popular-baby-names-walk-through-part-1-web-scrapping-and-ggploting/","Popular Baby Names Walk-Through Part 1 – Web Scrapping and ggploting","November 20, 2011","Command-Line Worldview"," Command-Line Worldview","http://notebookonthewebs.tumblr.com/post/13084979335","ggplot, Python, R" "59",59,"Monday, November 21, 2011 at 7:09am","6 people like this","At least 1 comment","0","R bloggers","An online, interactive, presentation - about interactive visualization in R, cool:http://www.r-bloggers.com/interactive-presentations-with-deck-js/","http://www.r-bloggers.com/interactive-presentations-with-deck-js/","Data analysis is often an iterative and interactive process. However, when I present about this subject, I feel often limited by the presentation software I use. It doesn't matter if I use LaTeX/PDF, PowerPoint or Keynote. In all cases it is either ver...","Sumit Bardhan Thanks for sharing !Monday, November 21, 2011 at 8:44am · LikeUnlikeReply","http://www.r-bloggers.com/interactive-presentations-with-deck-js/","Interactive presentations with deck.js","November 20, 2011","mages"," mages' blog","http://lamages.blogspot.com/2011/11/interactive-presentations.html","deck.js, googleVis, interactive, presentation, R" "60",60,"Sunday, November 20, 2011 at 7:12pm","0","0","0","CloudStat","‎CloudStat in R bloggers : Learn & Do R Programming on the Cloudhttp://www.r-bloggers.com/cloudstat-learn-do-r-language-on-the-cloud/",NA,NA,NA,NA,NA,NA,NA,NA,NA,NA "61",61,"Sunday, November 20, 2011 at 11:37am","0","0","0","Evangelia Lam","f(x) = (x1 + 10x2)^2 + 5(x3 − x4)^2 + (x2 − 2x3)^4 + (x1-x4)^4 can anyonone help me on how to plot the function i m tottally lost ..thanx in advance ",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "62",62,"Saturday, November 19, 2011 at 4:24pm","0","0","0","Luis Ospina","Hi, anyone knows if there is an app of R for android phones??, I really need R always!. Or maybe how could I install it in a xperia mini pro?. Thanks",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "63",63,"Friday, November 18, 2011 at 8:50pm","9 people like this","0","0","R bloggers","http://www.r-bloggers.com/htmltotext-extracting-text-from-html-via-xpath/","http://www.r-bloggers.com/htmltotext-extracting-text-from-html-via-xpath/","Converting HTML to plain text usually involves stripping out the HTML tags whilst preserving the most basic of formatting. I wrote a function to do this which works as follows (code can be found on github): The above uses an XPath approach to achieve it’s goal. Another approach would be to use a reg...","","http://www.r-bloggers.com/htmltotext-extracting-text-from-html-via-xpath/","htmlToText(): Extracting Text from HTML via XPath","November 18, 2011","Tony Breyal"," Consistently Infrequent » R","http://tonybreyal.wordpress.com/2011/11/18/htmltotext-extracting-text-from-html-via-xpath/","R, RCurl, regex, rstats, web scraping, XML, XPath" "64",64,"Monday, November 14, 2011 at 7:23am","2 people like this","0","0","R bloggers","The latest R-buz with google-scholar is summarized - and inherent problems are given:http://www.r-bloggers.com/google-scholar-still-sucks/","http://www.r-bloggers.com/google-scholar-still-sucks/","‎(This is a follow-up to my previous post on the topic.)I was encouraged by the appearance of two R-based Scholar-scrapers, within a week of each other. One, by Kay Cichini, converts the page URLs into text mode and scrapes from there (There's a slightl...","","http://www.r-bloggers.com/google-scholar-still-sucks/","Google Scholar (still) sucks","November 13, 2011","bbolker"," BMB's commonplace","http://bmb-common.blogspot.com/2011/11/google-scholar-still-sucks.html","bibliometry, R" "65",65,"Sunday, November 13, 2011 at 7:59am","0","At least 1 comment","0","Prasojo Bayu","hello everyone, i'm new user of R. i have problem, whether if i input command fm2<-lm(lsalary~lsales+lmktval+ceoten,data=data1), there always be Error in eval(expr, envir, enclos) : object 'lsalary' not found i had uninstall my R for 5 times! and it still appeared. :( need some advices and suggestion then :). thanks before!",NA,NA,"Cécile Sauder R tells you that the object 'lsalary' is not found, so you uninstall R oO It's obvious it's not going to change anything for your error ! Your data.frame ""data1"" must have columns named ""lsalary"", ""lsales"", ""lmktval"" and ""ceoten"". If not the error cames from here.Monday, November 21, 2011 at 1:28pm · LikeUnlikeReplyCécile Sauder fm2<-lm(lsalary~lsales+lmktval+ceoten,data=data1) can be also writen : fm2<-lm(data1$lsalary~data1$lsales+data1$lmktval+data1$ceoten) try if it worksbetter...Monday, November 21, 2011 at 1:29pm · LikeUnlike · 1ReplyPrasojo Bayu thank you ms. sauder. last week i almost hadn't sleep at all :D. finally i found the mistaken system of ms office. which is, the comma numeratic system should change through the control panel. after we fixed that, the R going smooth thoroughly. i hope other user wouldnt meet this problems. :) best regards from japan! you re such a kind person whose willing to share your knowledge with others.Monday, November 21, 2011 at 1:34pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "66",66,"Saturday, November 12, 2011 at 10:25am","12 people like this","0","0","R bloggers","Visualizing Likert Items using a colored table and ggplot2 - lovely...http://www.r-bloggers.com/visualizing-likert-items/","http://www.r-bloggers.com/visualizing-likert-items/","I have become quite a big fan of graphics that combine the features of traditional figures (e.g. bar charts, histograms, etc.) with tables. That is, the combination of numerical results with a visual representation has been quite useful for exploring descriptive statistics. I have wrapped two of my ...","","http://www.r-bloggers.com/visualizing-likert-items/","Visualizing Likert Items","November 11, 2011","Jason"," Jason Bryer » R","http://bryer.org/2011/visualizing-likert-items","R" "67",67,"Friday, November 11, 2011 at 9:14pm","0","0","0","Susanita G. Rodríguez","Hi!!! I want to use the function glht for interactions in Cox models, help please.",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "68",68,"Friday, November 11, 2011 at 5:20pm","0","0","0","Geraldo Afonso Carvalho Júnior","Hi guys! I want to hatch one area overlapping under two density curves. Can anybody help me? any simple example it pleased Thanks!",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "69",69,"Thursday, November 10, 2011 at 6:26pm","6 people like this","At least 1 comment","0","R bloggers","http://www.r-bloggers.com/expected-salary-by-major/","http://www.r-bloggers.com/expected-salary-by-major/","In this recent editorial about the Occupy Wall Street movement, Richard Kim profiles a protestor that despite having a master’s degree can’t find a job. This particular protestor quit his job as a school teacher three years ago and took out a $...","Eric Jennings In the code for this you used <...as.numeric(gsub(""\\$|,"","""",x))> to coerce the string into a numeric and remove the back-slashes and dollar-signs. --I recently tried on a table I was working with of about the dame size as yours, but my dollar VALUES were truncated as well as de-$ and de-, Please post some material on gsub & grep.Saturday, November 12, 2011 at 7:41am · LikeUnlikeReplyEric Jennings ‎""same"" sizeSaturday, November 12, 2011 at 7:42am · LikeUnlikeReply","http://www.r-bloggers.com/expected-salary-by-major/","Expected Salary by Major","November 10, 2011","rafalab"," Simply Statistics","http://simplystatistics.tumblr.com/post/12599452125","Advice, R" "70",70,"Thursday, November 10, 2011 at 3:06pm","12 people like this","0","0","R bloggers","Constructing a binary tree diagram in R - for describing a Bernoulli process http://www.r-bloggers.com/diagram-for-a-bernoulli-process-using-r/","http://www.r-bloggers.com/diagram-for-a-bernoulli-process-using-r/","A Bernoulli process is a sequence of Bernoulli trials (the realization of n binary random variables), taking two values (0/1, Heads/Tails, Boy/Girl, etc…). It is often used in teaching introductory probability/statistics classes about the binomial distribution. When visualizing a Bernoulli process, ...","","http://www.r-bloggers.com/diagram-for-a-bernoulli-process-using-r/","Diagram for a Bernoulli process (using R)","November 10, 2011","Tal Galili"," R-statistics blog » R","http://www.r-statistics.com/2011/11/diagram-for-a-bernoulli-process-using-r/","Bernoulli process, Binomial distribution, distribution, R, statistical distribution, statistics, visualization" "71",71,"Thursday, November 10, 2011 at 7:15am","8 people like this","View all 5 comments","0","R bloggers","Nice infographic, sad topic:http://www.r-bloggers.com/japan-quake-map/","http://www.r-bloggers.com/japan-quake-map/","Japan Quake Map with R, ggplot2, and FFmpeg 1 Introduction As a follow-up to ‘Analysis of Japanes [...]","Hiroyasu Ishimaru R bloggers - Thank you for acccepting my posting and your comment.Thursday, November 10, 2011 at 1:56pm · LikeUnlikeReplyR bloggers Dear Hiroyasu - thank YOU for your contribution. Best wishes, TalThursday, November 10, 2011 at 2:04pm · LikeUnlike · 1Reply","http://www.r-bloggers.com/japan-quake-map/","Japan Quake Map","November 10, 2011","H.Ishimaru"," Knowledge Discovery » R","http://www.knowledgediscovery.jp/japanquakemap1/","Data Analysis, earthquake, FFmpeg, ggplot2, iAnalysis, Japan Quake Map, R" "72",72,"Tuesday, November 8, 2011 at 9:12pm","7 people like this","At least 1 comment","0","R bloggers","http://www.r-bloggers.com/web-scraping-google-scholar-partial-success/","http://www.r-bloggers.com/web-scraping-google-scholar-partial-success/","I wanted to scrape the information returned by a Google Scholar web search into an R data frame as a quick XPath exercise. The following will successfully extract the ‘title’, ‘url’ , ‘publication’ and ‘description’. If any of these fields are not available, as in the case of a citation, the corre...","Parag Patil a good blog .. need to try out the codeWednesday, November 9, 2011 at 1:42am · LikeUnlikeReplyDave Garbutt Abstract still needs polishing :-) (after scraping content?)Wednesday, November 9, 2011 at 7:41am · LikeUnlike · 1Reply","http://www.r-bloggers.com/web-scraping-google-scholar-partial-success/","Web Scraping Google Scholar (Partial Success)","November 8, 2011","Tony Breyal"," Consistently Infrequent » R","http://tonybreyal.wordpress.com/2011/11/08/web-scraping-google-scholar-partial-success/","google scholar, R, rstats, web scraping, XML, XPath" "73",73,"Sunday, November 6, 2011 at 4:44pm","11 people like this","0","0","R bloggers","Colour wheels for quickly finding nearby colors for a graph (very nice!)http://www.r-bloggers.com/more-colour-wheels/","http://www.r-bloggers.com/more-colour-wheels/","In response to my post about colour wheels, I received a suggested enhancement from Drew. The idea is to first match colours based on the text provided and then add nearby colours. This can be done by ordering colours in terms of hue, saturation, and value. The result is a significant improvement an...","","http://www.r-bloggers.com/more-colour-wheels/","More colour wheels","November 5, 2011","Stubborn Mule"," Stubborn Mule » R","http://www.stubbornmule.net/2011/11/more-colour-wheels/","mathematics, R" "74",74,"Sunday, November 6, 2011 at 8:43am","8 people like this","0","1 share","R bloggers","The first R bloggers to dare and combine R with cats. I was wondering how long it might take until someone would do it:http://www.r-bloggers.com/the-joy-of-r-a-feline-guide/","http://www.r-bloggers.com/the-joy-of-r-a-feline-guide/","Just because it’s caturday Images by Mario Pineda-Krch (CC BY-NC-SA 3.0) This is from the “Mario’s Entangled Bank” blog ( http://pineda-krch.com/ ) of Mario Pineda-Krch, a theoretical biologist at the University of Alberta. Filed under: cats, computing, humour, R, Sweave","","http://www.r-bloggers.com/the-joy-of-r-a-feline-guide/","The Joy of R: A Feline Guide","November 5, 2011","Mario Pineda-Krch"," Mario's Entangled Bank » R","http://pineda-krch.com/2011/11/05/the-joy-of-r-a-feline-guide/","cats, computing, humour, R, sweave" "75",75,"Saturday, November 5, 2011 at 3:21pm","2 people like this","0","0","R bloggers","http://www.r-bloggers.com/data-referenced-journalism-and-the-media-%E2%80%93-still-a-long-way-to-go-yet/","http://www.r-bloggers.com/data-referenced-journalism-and-the-media-%E2%80%93-still-a-long-way-to-go-yet/","Reading our local weekly press this evening (the Isle of Wight County Press), I noticed a page 5 headline declaring “Alarm over death rates at St Mary’s”, St Mary’s being the local general hospital. It seems a Department of Health report on hospital mortality rates came out earlier this week, and th...","","http://www.r-bloggers.com/data-referenced-journalism-and-the-media-%E2%80%93-still-a-long-way-to-go-yet/","Data Referenced Journalism and the Media – Still a Long Way to Go Yet?","November 4, 2011","Tony Hirst"," OUseful.Info, the blog... » Rstats","http://blog.ouseful.info/2011/11/05/data-referenced-journalism-and-the-media-still-a-long-way-to-go-yet/","data journalism, datajourn, ddj, onlinejournalismblog, rstats" "76",76,"Saturday, November 5, 2011 at 1:25pm","0","0","0","Antonio Irpino","Anyone knows how to solve a generalized eigenvalue decomposition problem with R? i.e. there is a package that mimic the lapack DGGES or DGGEV function?",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "77",77,"Thursday, November 3, 2011 at 12:09pm","21 people like this","At least 1 comment","1 share","R bloggers","I enjoy seeing how O'reilly seems to like R:http://www.r-bloggers.com/the-next-generation-of-parallel-r/","http://www.r-bloggers.com/the-next-generation-of-parallel-r/","In view of open-source parallel computing with R this week presents a big step to the future. R 2.14.0 was released at October 31th, 2011. Now, R base ships with a parallel computing package called “parallel”. library(parallel) It combines advantages of the packages multicore and snow and it contai...","Marc Jekel just great, I was waiting for something like this!Thursday, November 3, 2011 at 12:37pm · LikeUnlike · 1Reply","http://www.r-bloggers.com/the-next-generation-of-parallel-r/","The next generation of parallel R","November 2, 2011","Markus (cloudnumbers.com)"," cloudnumbers.com » R-project","http://cloudnumbers.com/the-next-generation-of-parallel-r","high-performance computing, r-project" "78",78,"Wednesday, November 2, 2011 at 9:31pm","9 people like this","0","0","R bloggers","Lovely direction, nice implementation:http://www.r-bloggers.com/visually-examine-google-scholar-search-result-with-r-wordcloud/","http://www.r-bloggers.com/visually-examine-google-scholar-search-result-with-r-wordcloud/","‎...When reading Scott Chemberlains last post about web-scraping I felt it was time to pick up and complete an idea that I was brooding over for some time now:When a scientist aims out for a new project the first thing to do is to evaluate if other peop...","","http://www.r-bloggers.com/visually-examine-google-scholar-search-result-with-r-wordcloud/",NA,NA,NA,NA,NA,NA "79",79,"Monday, October 31, 2011 at 11:39pm","7 people like this","View all 4 comments","0","R bloggers","Video - Nomograms for visualising relationships between three variables (useR! 2011 – invited talk by Jonathan Rougier)http://www.r-bloggers.com/user-2011-%E2%80%93-jonathan-rougier-nomograms-for-visualising-relationships-between-three-variables/","http://www.r-bloggers.com/user-2011-%E2%80%93-jonathan-rougier-nomograms-for-visualising-relationships-between-three-variables/","useR2011 – Rougier View more presentations from rusersla","Eshetu Janka thanks good slides belowTuesday, November 1, 2011 at 2:45pm · LikeUnlikeReplyMick Wu Oops, it seems to be an ipad and/or facebook app issue. This is great!Tuesday, November 1, 2011 at 4:40pm · LikeUnlikeReply","http://www.r-bloggers.com/user-2011-%E2%80%93-jonathan-rougier-nomograms-for-visualising-relationships-between-three-variables/","useR! 2011 – Jonathan Rougier: Nomograms for visualising relationships between three variables","October 31, 2011","Szilard"," R User Groups","http://feedproxy.google.com/~r/RUserGroups/~3/oys_g2vJqHM/","useR conference" "80",80,"Monday, October 31, 2011 at 11:28am","0","0","0","Göran Granath","What I found in the reference manual for the package ""pedantics"": pedantics: Functions to facilitate power and sensitivity analyses for genetic studies of natrual popualtions.",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "81",81,"Sunday, October 30, 2011 at 6:17pm","7 people like this","0","0","R bloggers","A video recording of the lightning talk I gave at useR2011http://www.r-bloggers.com/the-present-and-future-of-the-r-blogosphere-7-minute-video-from-user2011/","http://www.r-bloggers.com/the-present-and-future-of-the-r-blogosphere-7-minute-video-from-user2011/","This is (roughly) the lightning talk I gave in useR2011. If you are a reader of R-bloggers.com then this talk is not likely to tell you anything new. However, if you have a friend, college or student who is a new useRs of R, this talk will offer him a decent introduction to what the R [...]","","http://www.r-bloggers.com/the-present-and-future-of-the-r-blogosphere-7-minute-video-from-user2011/","The present and future of the R blogosphere (~7 minute video from useR2011)","October 30, 2011","Tal Galili"," R-statistics blog » R","http://www.r-statistics.com/2011/10/the-present-and-future-of-the-r-blogosphere-a-7-minute-lightning-talk-from-user2011/","Blogs, R, R and the web, R bloggers, R blogs, R community, the future of R, the R blogosphere, useR, useR 2011, wordpress, WordPress.com" "82",82,"Friday, October 28, 2011 at 9:36am","23 people like this","0","2 shares","R bloggers","Creating an R package, using developer/productivity tools - Video (integrated slides+demo+audio) is embeddedhttp://www.r-bloggers.com/creating-an-r-package-using-developerproductivity-tools/","http://www.r-bloggers.com/creating-an-r-package-using-developerproductivity-tools/","Couple of R programming (mainly infrastructure/workflow) related topics discussed at the Los Angeles R users group in a tutorial/demo-like form (targeted mainly to beginners) by Szilard Pafka and Jeroen Ooms: how easy it is to create a simple package for … Continue reading →","","http://www.r-bloggers.com/creating-an-r-package-using-developerproductivity-tools/","Creating an R package, using developer/productivity tools","October 27, 2011","Szilard"," R User Groups","http://feedproxy.google.com/~r/RUserGroups/~3/qSmOgGFyvzo/","devtools, Eclipse.StatET, Git, ide, jeroen ooms, programming, R package, roxygen, RStudio, RUG Los Angeles, Szilard.Pafka, testing, testthat, tutorial, version control, workflow" "83",83,"Thursday, October 27, 2011 at 11:21pm","16 people like this","0","2 shares","R bloggers","A new release for RStudio, and some planned future featureshttp://www.r-bloggers.com/rstudio-update/","http://www.r-bloggers.com/rstudio-update/","With R 2.14 slated to be released next week we wanted to encourage everyone planning to upgrade to also update to the latest release of RStudio (v0.94.110). For R 2.14 users this release includes tweaks related to compatibility with the R 2.14 graphics engine as well as compatibility with the new pa...","","http://www.r-bloggers.com/rstudio-update/","RStudio Update","October 27, 2011","jjallaire"," RStudio Blog","http://blog.rstudio.org/2011/10/27/rstudio-update/","News" "84",84,"Wednesday, October 26, 2011 at 3:16pm","0","At least 1 comment","0","Mukul Pal","http://orpheus.asia/2011/10/26/the-intermarket-jiseki-cycles/",NA,NA,"Mukul Pal We converted one of R plots to display intermarket cycles. R rocks.Wednesday, October 26, 2011 at 3:17pm · LikeUnlikeReplyMukul Pal http://www.investopedia.com/terms/i/intermarketanalysis.asp#axzz1bthb6zXOWednesday, October 26, 2011 at 3:17pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "85",85,"Wednesday, October 26, 2011 at 12:46pm","10 people like this","At least 1 comment","0","R bloggers","A post about the latest features in R-bloggers.com - I will be happy for any feedback.http://www.r-bloggers.com/new-features-in-r-bloggers-com/","http://www.r-bloggers.com/new-features-in-r-bloggers-com/","","Rafał Wiśniewski chat is great ideaWednesday, October 26, 2011 at 1:28pm · LikeUnlikeReplyR bloggers Thanks RafalWednesday, October 26, 2011 at 5:51pm · LikeUnlikeReply","http://www.r-bloggers.com/new-features-in-r-bloggers-com/","New features in R-bloggers.com","October 26, 2011","Tal Galili",NA,NA,NA "86",86,"Tuesday, October 25, 2011 at 10:57pm","15 people like this","View all 4 comments","1 share","R bloggers","I enjoy using this package for reading and writing xlsx files in R. I am glad they keep updating it:http://www.r-bloggers.com/xlconnect-0-1-7/","http://www.r-bloggers.com/xlconnect-0-1-7/","Mirai Solutions GmbH (http://www.mirai-solutions.com/) is pleased to announce the availability of XLConnect 0.1-7. This release includes a number of improvements and new features: Performance improvements when writing large xlsx files New workbook data extraction & replacement operators [, [<-, [[, …","1 share1 shareNorbert Köhler I've been using the ""xlsx"" package so far. Works pretty good.Wednesday, October 26, 2011 at 9:58am · LikeUnlike · 2ReplyR bloggers Ben, Kyung - You are welcome :) Norbert - interesting, I don't remember trying it out. I might do it then...Wednesday, October 26, 2011 at 10:27am · LikeUnlikeReply","http://www.r-bloggers.com/xlconnect-0-1-7/","XLConnect 0.1-7","October 24, 2011","Mirai Solutions"," Mirai Solutions » R","http://miraisolutions.wordpress.com/2011/10/24/xlconnect-0-1-7/","R, XLConnect" "87",87,"Monday, October 24, 2011 at 4:47pm","10 people like this","0","0","R bloggers","A nice point about an interesting issue...http://www.r-bloggers.com/normality-tests-don%E2%80%99t-do-what-you-think-they-do/","http://www.r-bloggers.com/normality-tests-don%E2%80%99t-do-what-you-think-they-do/","Last week a question came up on Stack Overflow about determining whether a variable is distributed normally. Some of the answers reminded me of a common and pervasive misconception about how to apply tests against normality. I felt the topic was general enough to reproduce my comments here (with min...","","http://www.r-bloggers.com/normality-tests-don%E2%80%99t-do-what-you-think-they-do/","Normality tests don’t do what you think they do","October 23, 2011","Ian"," Fells Stats » R","http://blog.fellstat.com/?p=61","R, Uncategorized" "88",88,"Monday, October 24, 2011 at 4:45pm","0","At least 1 comment","0","Babak Naimi","http://r-gis.net/?q=ModisDownload","http://r-gis.net/?q=ModisDownload","MODIS instruments including two satellites (Terra and Aqua) are viewing the entire earth surface every 1 to 2 days, acquiring 36 spectral bands. These data provide insight on global processes occurring on the land, ocean and atmosphere. The images ranging in wavelength from 0.4 µm to 14.4 µm, at spa...","R bloggers Why don't you just start a blog on wordpress.com and add it to R-bloggers?Monday, October 24, 2011 at 4:48pm · LikeUnlikeReplyBabak Naimi I've not tried starting a blog yet! but I give it a try. Thanks :)Monday, October 24, 2011 at 5:31pm · LikeUnlikeReplyR bloggers You're welcome - I see you've added your site - however, it will not be added (since it is not a blog...)Monday, October 24, 2011 at 8:21pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "89",89,"Monday, October 24, 2011 at 3:07pm","23 people like this","0","1 share","R bloggers","Beautiful mapping of opinion data:http://www.r-bloggers.com/isarithmic-maps-of-public-opinion-data/","http://www.r-bloggers.com/isarithmic-maps-of-public-opinion-data/","As a follow-up to my isarithmic maps of county electoral data, I have attempted to experiment with extending the technique in two ways. First, where the electoral maps are based on data aggregated to the county level, I have sought to generalize the method to accept individual responses for which on...","","http://www.r-bloggers.com/isarithmic-maps-of-public-opinion-data/","Isarithmic Maps of Public Opinion Data","October 24, 2011","d sparks"," David B. Sparks » r","http://dsparks.wordpress.com/2011/10/24/isarithmic-maps-of-public-opinion-data/","Geography, Methods, public opinion, R, visualization" "90",90,"Friday, October 21, 2011 at 6:24pm","25 people like this","0","3 shares","R bloggers","Scatterplot-binning for plotting hundreds of millions of points (using ggplot2)http://www.r-bloggers.com/ggplot2-for-big-data/","http://www.r-bloggers.com/ggplot2-for-big-data/","‎(Hadley Wickham, author of ggplot2 and several other R packages, guest blogs today about forthcoming big-data improvements to his R graphics package -- ed.) Hi! I'm Hadley Wickham and I'm guest posting on the Revolutions blog to give you a taste of some of the visualisation work that my research tea...","","http://www.r-bloggers.com/ggplot2-for-big-data/","ggplot2 for big data","October 21, 2011","David Smith"," Revolutions","http://blog.revolutionanalytics.com/2011/10/ggplot2-for-big-data.html","graphics, packages, R, REvolution" "91",91,"Friday, October 21, 2011 at 3:25pm","13 people like this","At least 1 comment","1 share","R bloggers","A new course for R users, by statistics.com, about support vector machines:http://www.r-bloggers.com/support-vector-machines-in-r-a-course-by-lutz-hamel/","http://www.r-bloggers.com/support-vector-machines-in-r-a-course-by-lutz-hamel/","","Muhammad Irfan Malik thanksSaturday, October 22, 2011 at 5:08pm · LikeUnlikeReply","http://www.r-bloggers.com/support-vector-machines-in-r-a-course-by-lutz-hamel/","Support Vector Machines in R (a course by Lutz Hamel)","October 19, 2011","Tal Galili",NA,NA,"online courses, statistics.com, svm" "92",92,"Tuesday, October 11, 2011 at 11:56am","0","At least 1 comment","0","Sagar Kashid","does R have 'goto' like functionality? ",NA,NA,"R bloggers ask here:Tuesday, October 11, 2011 at 12:00pm · LikeUnlikeReplyR bloggers http://stackoverflow.com/Tuesday, October 11, 2011 at 12:00pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "93",93,"Sunday, October 9, 2011 at 12:20pm","3 people like this","At least 1 comment","0","Mukul Pal","Though gamma distribution has been illustrated in time durations, this paper lays down a base for Time Topology from philosophical, historical and statistical perspective. This opens up a bigger Cartesian debate that how can both Y axis and X axis (assuming 2 D Topology) have patterns. Pattern on Y axis is bound to conflict with the pattern on the X axis. Moreover, the symmetry overlap in natural systems is so conspicuous, that the hidden mysterious force or law of nature seems to be time. The Maple leaf symmetry cannot be both in x axis common time and y axis natural systems. Assuming this is true, Plato’s view of Time would prevail on Aristotle’s view of time. Time Topology would also stand to strengthen the subject of intertemporal choices in the future evolution of society. Time Topology at a 2D level is a head and shoulder pattern, which is mirrored by every natural system. Time Topology could also be the reason for overwhelming exponentiality around us. And why it’s really not a surprise that the universe is accelerating (Nobel Prize 2011), because accelerating time creates accelerating space (accelerating entropy).","http://www.r-bloggers.com/fractals-in-r/","Atte Tenkanen had a blog on fractals using R for a time. Much of his source code is still available online. To produce his version of the Mandelbrot set:source('http://users.utu.fi/attenka/mandelbrot_set.R')Fractals (such...","Mukul Pal http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1893791Sunday, October 9, 2011 at 12:21pm · LikeUnlikeReply","http://www.r-bloggers.com/fractals-in-r/","Fractals in R","August 27, 2010","C"," R-Chart","http://www.r-chart.com/2010/08/fractals-in-r.html","fractals, ggplot2" "94",94,"Tuesday, September 27, 2011 at 9:15pm","0","0","0","Tom Arabia","at first thought he meant ""republican."" thankfully he didn't. too bad he is enough republican on his own.http://www.r-bloggers.com/obama-recruiting-analysts-and-r-is-one-preferred-skill/",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "95",95,"Saturday, September 17, 2011 at 11:51am","0","View all 4 comments","0","Mukul Pal","http://orpheus.asia/2011/08/30/agro-jiseki-cycles/",NA,NA,"Szilard Nemes Cool plot, could you share the code?Tuesday, September 20, 2011 at 10:48am · LikeUnlike · 1ReplyMukul Pal setwd(""C:/R"") m<-data.frame(read.table(""file.csv"", sep=',',header=TRUE)) pl<-function(a){ k<-dim(m) g=0 for( i in (1:k[2])){ if(colnames(m)[i]==a){ g=i break } else{ g=0 } } q<-m[,((g-1):(g+3))] a5<-q[,1] a1<-q[,2] a2<-q[,3] a3<-q[,4] a4<-q[,5] par(mar=c(5, 4, 4,5) + 0.1) plot(a2,type='l',col='red',ylab='',xlab="" "",axes=FALSE) lines(a3,col='blue',ylab='',xlab="" "") lines(a4,col='dark grey',ylab='',xlab="" "",lty=2) length(a5)->count axis(2) axis(1,at=seq(1,count,1),label=a5) par(new=TRUE) plot(a1,type='l',axes=FALSE,xlab=""Time"",ylab='Ranking') axis(4,main='price') mtext(""Price"", side=4) title(a) } pl(""X.SYMBOL1"")Thursday, September 22, 2011 at 6:13pm · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "96",96,"Friday, September 16, 2011 at 5:28pm","21 people like this","0","0","R bloggers","http://www.r-bloggers.com/beeswarm-plot-with-ggplot2/","http://www.r-bloggers.com/beeswarm-plot-with-ggplot2/","A colleague showed me results of his study project with beeswarm plots made by GraphPad. I was wondering if it could be implemented in R and more specifically with ggplot2. There is a R package allowing to draw such graphs, the beeswarm package (beeswarm, cran). An implementation was shown on R-stat...","","http://www.r-bloggers.com/beeswarm-plot-with-ggplot2/","Beeswarm Plot with ggplot2","September 16, 2011","denishaine"," denis haine » blog","http://denishaine.wordpress.com/2011/09/16/beeswarm-plot-with-ggplot2/","graphics, R" "97",97,"Monday, September 5, 2011 at 2:15pm","0","0","0","Amalia Susana Haye","I found my mistake. It was in the line timeseries<-ts; must be the end= c(2001,5), now I´m glad. Thanks the same",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "98",98,"Monday, September 5, 2011 at 10:57am","0","0","0","Amalia Susana Haye","Hello: I need help on: When I transform a series of data to the Format Time Series with ts, the mean change of value; it is not the same as the mean of the data: my code is: data<-scan() # the data (251 counts) mean(data) # 38.89514 timeseries<-ts(data,start=c(1980,7),end=c(2004,6),freq=12) Thanks",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "99",99,"Friday, September 2, 2011 at 12:55pm","0","View all 4 comments","0","Amalia Susana Haye","Hola: Necesito ayuda. Al transformar una serie de datos al formato Serie de Tiempo, descubro que la media (mean) de la serie no coincide con la media (mean) de los datos originales. mi código es: datos<-scan() # ingreso de datos (251 datos) mean(datos) # [1] 38.89514 timeseries<-ts(datos,start=c(1980,7),end=c(2004,6),freq=12) mean(timeseries) # [1] 40.24542 ¿Alguien puede decirme cómo debo interpretar esto? Gracias.",NA,NA,"David López González yo estoy empezando ahora con series temporales, has probado a quitarle ""end=c(2004,6)"" y que lo calcule RSunday, September 11, 2011 at 5:53pm · LikeUnlikeReplyAmalia Susana Haye Sí. Igualmente, gracias por tu ayuda, ya que descubrí mi estúpido error. Contando la cantidad de registros que hay desde start hasta end, descubrí que no hay 251, por lo que tuve que revisar los datos, y debía haber puesto end= c(2001,5); con lo que si hubiera dejado que R lo calculara automáticamente, tampoco sé si hubiera sido del todo bueno, ya que para eso debería ingresar los datos adecuadamente.Monday, September 12, 2011 at 1:00pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "100",100,"Thursday, August 18, 2011 at 2:58am","0","View all 7 comments","0","Fábio Ribeiro","I'd like receive some information about paralelization with R tnx a lot",NA,NA,"Ramneek Handa on mac quadcore..Monday, November 14, 2011 at 9:34am · LikeUnlikeReplyRamneek Handa oops it crashes :(Monday, November 14, 2011 at 9:35am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "101",101,"Tuesday, August 2, 2011 at 12:57pm","0","0","0","Avinash Gupta","hello every one , i hv data in exel format . i want to cluster it and these cluster data store in txt file exel file. i done heirachical clustering through Rcmdr but i m unable to performed with labels. it's genrate labels by serial number i want to label it by other colum data .plz help me any packages aur script for it .",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "102",102,"Monday, July 25, 2011 at 8:48pm","2 people like this","At least 1 comment","2 shares","StatsTips","Google Motion Charts with R","http://code.google.com/p/google-motion-charts-with-r/","googleVis is an R package providing an interface between R and the Google Visualisation API. The functions of the package allow the user to visualise data with the Google Visualisation API without uploading their data to Google. For a quick start read the four page overview document.","R bloggers Thanks for the link. There has been a bunch of articles about the googleVis package in the past few months http://www.r-bloggers.com/?s=googleVisMonday, July 25, 2011 at 8:52pm · LikeUnlike · 1ReplyXun Tang Fantastic! just powerful as the SAS JMP!Saturday, October 22, 2011 at 6:17am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "103",103,"Wednesday, July 13, 2011 at 7:50pm","0","0","0","StatsTips","Radford Neal's new MCMC software in R (GRIMS):","http://radfordneal.wordpress.com/2011/06/26/grims-%E2%80%94-general-r-interface-for-markov-sampling/","I have released a (very) preliminary version of my new MCMC software in R, which I’m calling GRIMS, for General R Interface for Markov Sampling. You can get it here.","",NA,NA,NA,NA,NA,NA,NA "104",104,"Wednesday, July 13, 2011 at 7:21pm","0","0","0","Javier Ruiz","codes in r for ecological sciences on request:","http://javierruizperez.blogspot.com/","","",NA,NA,NA,NA,NA,NA,NA "105",105,"Wednesday, July 13, 2011 at 6:13am","0","View all 4 comments","0","Sagar Kashid","i have used twoord.plot {plotrix} command to plot two graphs in one plot, but now i want to plot four graphs in one plot? pl. help-, ",NA,NA,"R bloggers What ""graph""? would using lines() help you? In any event, why won't you take it to the R help mailing list?Wednesday, July 13, 2011 at 7:04am · LikeUnlikeReplySagar Kashid yup, i will put it there also, but m seeking fast response so whay posted here... anyways thxWednesday, July 13, 2011 at 7:06am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "106",106,"Wednesday, July 13, 2011 at 1:49am","5 people like this","At least 1 comment","0","StatsTips","Sweave, a tool that allows to embed the R code for complete data analyses in latex documents:http://www.stat.uni-muenchen.de/~leisch/Sweave/","http://www.stat.uni-muenchen.de/%7Eleisch/Sweave/","","StatsTips Dear R Bloggers, Our page, managed by a group of PhD students in Statistics, A.I, machine learning, and Epidemiology, is trying to disseminate useful information/news/endeavors in those field. I appreciate if you do us a favor by sharing our page so that if people are interested in those fields, they can join our page. I appreciate your help. -StatsTipsWednesday, July 13, 2011 at 1:55am · LikeUnlikeReplyR bloggers Hi there, I've added you to the page's favorite pages. Besides, you are publishing content here, which gives you more exposure. Cheers, TalWednesday, July 13, 2011 at 6:46am · LikeUnlikeReplyStatsTips Tal, I appreciate it. Best Regards.Wednesday, July 13, 2011 at 4:10pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "107",107,"Tuesday, July 12, 2011 at 7:24pm","0","At least 1 comment","0","Luciana Alves","I can't install from source (CRAN binaries) spatial packages such as sp or spdep (Mac OS X 10.6.8; R 2.13.1) using the Packager installer. Any clues?",NA,NA,"R bloggers Ask on the R-help mailing list. And read the posting guide first...Tuesday, July 12, 2011 at 8:01pm · LikeUnlikeReplyLuciana Alves thanksTuesday, July 12, 2011 at 8:36pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "108",108,"Thursday, July 7, 2011 at 1:05am","0","At least 1 comment","0","Matt Cooper","Been missing the posts guys. Keep em coming!",NA,NA,"R bloggers Thanks Matt :) Facebook was having issue with the feed, so I've tried another one. I'm glad it now works :)Thursday, July 7, 2011 at 6:20am · LikeUnlikeReplyR bloggers ‎(or at least I hope it works...)Thursday, July 7, 2011 at 6:21am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "109",109,"Tuesday, July 5, 2011 at 7:42pm","35 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/in-4-steps-your-application-including-r-is-running-on-a-cloud-computing-cluster/10150232154158583"," This article was first published on cloudnumbers.com » R-project, and kindly contributed to R-bloggersToday, cloud computing is used in many application areas from academic research to industry....","Alex Baki winning!Tuesday, July 5, 2011 at 8:11pm · LikeUnlikeReplyR bloggers I didn't get what you are saying Alex.Tuesday, July 5, 2011 at 8:56pm · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "110",110,"Tuesday, July 5, 2011 at 7:42pm","35 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/in-4-steps-your-application-including-r-is-running-on-a-cloud-computing-cluster/10150232154158583"," This article was first published on cloudnumbers.com » R-project, and kindly contributed to R-bloggersToday, cloud computing is used in many application areas from academic research to industry....","Alex Baki winning!Tuesday, July 5, 2011 at 8:11pm · LikeUnlikeReplyR bloggers I didn't get what you are saying Alex.Tuesday, July 5, 2011 at 8:56pm · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "111",111,"Tuesday, July 5, 2011 at 7:42pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/slides-from-my-r-tutorial-on-twitter-text-mining-rstats/10150232154178583"," This article was first published on Things I tend to forget » R, and kindly contributed to R-bloggersLast month I presented this introduction to R at the Boston Predictive Analytics MeetUp on Twitter Sentiment.The goal of the presentation was to expose a first-time (but technically savvy) ...","",NA,NA,NA,NA,NA,NA,NA "112",112,"Tuesday, July 5, 2011 at 7:42pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/bounded-target-support/10150232154168583"," This article was first published on Xi'an's Og » R, and kindly contributed to R-bloggersHere is an interesting question from Tomàs that echoes a lot of related emails:I’m turning to you for advice. I’m facing problem  where parameter space is bounded, e.g. all p...","",NA,NA,NA,NA,NA,NA,NA "113",114,"Sunday, July 3, 2011 at 10:59pm","0","0","0","StatsTips","A simple guide to an elegant R packages useful in psychological research:http://www.personality-project.org/r/","http://www.personality-project.org/r/","‎(For a very abbreviated form of this guide meant to help students do basic data analysis in a personality research course, see a very short guide. In addition, a short guide to data analysis in a research methods course offers some more detail on graphing.)","",NA,NA,NA,NA,NA,NA,NA "114",115,"Tuesday, June 28, 2011 at 6:07pm","0","0","0","StatsTips","Rasch models in R","http://www.unt.edu/rss/rasch_models.htm","R can be used to fit a Rasch model in Item Response Theory (IRT). The Rasch model was proposed in the 1960's by a Danish statistician Georg Rasch. The basic Rasch model is used to separate the ability of test takers and the quality of the test. In this section we will be going over how R can be u","",NA,NA,NA,NA,NA,NA,NA "115",116,"Tuesday, June 21, 2011 at 2:07am","0","0","0","Eugenia Munaro","Diallel Analysis using Hayman approach is so common in plant breeding and genetics. I'm wondering if someone can share R worked example on Diallel Analysis. ",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "116",117,"Friday, June 17, 2011 at 3:58am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/fixed-unable-to-plot-a-decent-x-axis-in-a-time-series-plot-using-zoo/10150210559048583","Here is the link to the original problem...","",NA,NA,NA,NA,NA,NA,NA "117",118,"Friday, June 17, 2011 at 3:58am","5 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/character-occurrence-in-passwords/10150210559053583","As everyone knows, it seems that Sony is taking a bit of a battering from hackers. Thanks to Sony, numerous account and password details are now circulating on the internet. Recently, Troy Hunt carried out a brief analysis of the password structure...","",NA,NA,NA,NA,NA,NA,NA "118",119,"Friday, June 17, 2011 at 3:58am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/reits-for-everybody-now-reits-for-nobody-part-2/10150210559043583","As a quick follow-up to my first REITs for Everybody Might Now Mean REITs for Nobody, I want to look at REITs and High Yield bonds, which also might simultaneously attract conservative yield buyers and speculative beta chasers.HYG (iShares High Yield) and IYR (iShares REIT)With R we can...","",NA,NA,NA,NA,NA,NA,NA "119",120,"Wednesday, June 8, 2011 at 4:40pm","2 people like this","0","0","StatsTips","‎*********ggplot2: Elegant graphics for data analysis***************** The ggplot2 package for R is an amazing system for creating entirely new visualizations of data. Here is a very useful ggplot2 WIKI.","https://github.com/hadley/ggplot2/wiki","ggplot2 - An implementation of the Grammar of Graphics in R","",NA,NA,NA,NA,NA,NA,NA "120",121,"Wednesday, June 1, 2011 at 9:52pm","2 people like this","0","0","StatsTips","The R language: Fast and efficient partial singular value decomposition of large data ","https://www.youtube.com/watch?v=ipkuRqYT8_I&feature=player_embedded","Bryan discusses the new irlba package for R, showing how it can be used to compute a few singular values of the Netflix prize data.","",NA,NA,NA,NA,NA,NA,NA "121",122,"Sunday, May 29, 2011 at 7:13pm","0","0","0","StatsTips","Presentations from the speakers of R/Finance 2011 conference are now available for download:","http://blog.revolutionanalytics.com/2011/05/presentation-from-rfinance-2011-available.html","Last month's R/Finance 2011 conference in Chicago was an outstanding event, bringing together some of the best minds in applying R to financial data. Presentations from the speakers are now available for download, with a wealth of useful information there for anyone working in quantiative finance. N","",NA,NA,NA,NA,NA,NA,NA "122",123,"Sunday, May 29, 2011 at 9:44am","2 people like this","At least 1 comment","0","Mukul Pal","Steve Shreve on Pablo Triana’s The Flawed Math of Financial Models","http://www.quantnet.com/steve-shreve-on-pablo-triana/","Steve Shreve's rebuttal of Pablo Triana's criticism of the curriculum of the quantitative finance programs","Mukul Pal http://www.ft.com/cms/s/2/2794cfc4-f97a-11df-9e29-00144feab49a.html#axzz16zTSunday, May 29, 2011 at 9:44am · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "123",124,"Thursday, May 26, 2011 at 6:01pm","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/sweave-and-pgfsweave-in-lyx-20x-experimental/10150192092458583","About half a year ago, I wrote a post on the configuration of (pgf)Sweave and LyX, which was intended to save us some efforts in going through all the details during the configuration...","Dave Garbutt any idea about how long it might take to be rolled out? (2.1, 2.01....)Thursday, May 26, 2011 at 10:47pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "124",125,"Thursday, May 26, 2011 at 6:01pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/cricket-fever-again/10150192092453583","England take on Sri Lanka in a test series starting today. After watching Cricket world cup 2011 and witnessing India play in quarter final, semi final and the finale in stadiums all over India, I had little appetite for any of the IPL 2011 matches. But now, I'm excited again. ...","",NA,NA,NA,NA,NA,NA,NA "125",126,"Thursday, May 26, 2011 at 6:01pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/panel-estimation/10150192092448583","Panel This post was kindly contributed by BMS Add-ons » BMS Blog - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "126",127,"Tuesday, May 24, 2011 at 7:19am","0","At least 1 comment","0","Hadji Cortez Jalotjot","Hi! Can R produce an optimal (or near optimal) unbalanced design for choice experiments? I have 6 factors (attributes) with different number of factor levels which are not multiples of each other. Can the AlgDesign do this? Thanks!",NA,NA,"Luis Andres Sure it can. Try the lavaan package to model your design. It is more user friendly than the SEM package.Tuesday, July 5, 2011 at 12:40am · LikeUnlikeReplyHadji Cortez Jalotjot Thanks Luis. I'll explore those packages although I have studied AlgDesign a bit already.Tuesday, July 5, 2011 at 6:14am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "127",128,"Sunday, May 22, 2011 at 5:23pm","2 people like this","At least 1 comment","0","StatsTips","Springer-Verlag provides most of their books online now and as long as your institution has a license, it's free for you! Applied Statistical Genetics with R:","http://www.springerlink.com/content/978-0-387-89553-6#section=18289&page=1","","StatsTips Our group found this book very useful in our research on Statistical Genetics, so I am posting this here for your fans as well.Sunday, May 22, 2011 at 5:24pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "128",129,"Sunday, May 22, 2011 at 4:33pm","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/terrys-spiel/10150188181868583","“We don’t need likelihood functions; we just need to know how to simulate from [them] (…) We don’t need models with sufficient statistics; we just need summary statistics (…) We don’t need to be Bayesian; we just need to be approximately so. We don’t n...","Saoussen Gharbi Hi can you help about the use of waveslim package with R, thanks a lotSunday, May 22, 2011 at 4:34pm · LikeUnlikeReplyR bloggers Asking it here wouldn't get you an answer - ask on the bloggers homepageFriday, June 24, 2011 at 8:19pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "129",130,"Sunday, May 22, 2011 at 4:33pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/slowing-down-matrix-multiplication-in-r/10150188181878583","After I realized that some aspects of R’s implementation are rather inefficient, one of the first things I looked at was matrix multiplication. There I found a huge performance penalty for many matrix multiplies, a penalty which remains in the current version, 2.13.0. ...","",NA,NA,NA,NA,NA,NA,NA "130",131,"Sunday, May 22, 2011 at 4:33pm","5 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/comparing-student-outcomes-with-research-output-using-r-and-ggplot2s-text-labels/10150188181863583","In this post, I take a look at some league table data recently published by the Guardian. I also provide the R code for annotating the graphs for ggplot2.PurposeIt’s one of those fun aspects of teaching at a university that teaching itself isn’t the most important things on our minds. St...","",NA,NA,NA,NA,NA,NA,NA "131",132,"Wednesday, May 18, 2011 at 8:11am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-simple-function-for-plotting-phylogenies-in-ggplot2/10150184647223583","I wrote a simple function for plotting a phylogeny in ggplot2. However, it only handles a 3 species tree right now, as I haven't figured out how to generalize the approach to N species.Any ideas on how to improve this...","",NA,NA,NA,NA,NA,NA,NA "132",133,"Wednesday, May 18, 2011 at 8:11am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/simulating-winloss-streaks-with-r-rle-function/10150184647208583","The following script allows you to simulate sample runs of Win, Loss, Breakeven streaks based on a random distribution, using the run length encoding function, rle in R...","",NA,NA,NA,NA,NA,NA,NA "133",134,"Wednesday, May 18, 2011 at 8:11am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/resources-for-learning-r/10150184647203583","The information below will be periodically updated at the folowing permanent link: http://www.backsidesmack.com/r-resources/Searching for information on R sucks...","",NA,NA,NA,NA,NA,NA,NA "134",135,"Wednesday, May 18, 2011 at 7:12am","2 people like this","0","0","StatsTips","Running WinBugs and OpenBugs from R: Andrew Gelman's Bugs.R webpage explains the functions for running WinBugs from R. ","http://www.stat.columbia.edu/%7Egelman/bugsR/","The bugs() function takes data and starting values as input, calls a Bugs model, summarizes inferences and convergence in a table and graph, and saves the simulations in arrays for easy access in R. Here's an example of print() and plot() as applied to a bugs fit.","",NA,NA,NA,NA,NA,NA,NA "135",136,"Wednesday, May 18, 2011 at 2:19am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-survey-of-the-60s-monte-carlo-methods-2/10150184448748583","The 24 questions asked by John Halton in the conclusion of his 1970 survey areCan we obtain a theory of convergence for random variables taking values in Fréchet spaces?Can the study of Monte Carlo estimates in separable Fréchet spaces give a theory of global approximation?When sampling f...","",NA,NA,NA,NA,NA,NA,NA "136",137,"Wednesday, May 18, 2011 at 2:19am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/stata-like-marginal-effects-for-logit-and-probit-models-in-r/10150184448733583","Although this blog’s primary focus is time series, one feature I missed from Stata was the simple marginal effects command, ‘mfx compute’, for cross-sectional work, and I could not find an adequate replacement in R. To b...","",NA,NA,NA,NA,NA,NA,NA "137",138,"Wednesday, May 18, 2011 at 2:19am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/aib-stock-price-egarch-m-and-rgarch/10150184235053583","This post examines conditional heteroskedasticity models in the context of daily stock price data for Allied Irish Banks (AIB), specifically how to test for conditional heteroskedasticity in a series, how to approach model specification and estimation when time-varying volatility is present, and...","",NA,NA,NA,NA,NA,NA,NA "138",139,"Tuesday, May 17, 2011 at 4:58pm","0","0","0","Polly Compston","Please someone help me! why is compare illegal in Epi's mh command? e.g. > mh(d, y, compare=""sex"", by=""ageincat"", cohort=TRUE, confidence = 0.95) Error in mh(d, y, compare = ""sex"", by = ""ageincat"", cohort = TRUE, confidence = 0.95) : Illegal argument: compare I've been using the sex variable all along - have tried a host of different codes but not succeeding. Would very much appreciate any advice",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "139",140,"Tuesday, May 17, 2011 at 2:12am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-tutorial-add-confidence-intervals-to-dotchart/10150183076923583","Recently I was working on a data visualization project.  I wanted to visualize summary statistics by category of the data.  Specifically I wanted to see a simple dispersion of data with confidence intervals for each category of data. R is my tool of choice for data visualization.  My audience was...","",NA,NA,NA,NA,NA,NA,NA "140",141,"Tuesday, May 17, 2011 at 2:12am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-38-39-data-manipulation/10150183076918583","Last week i created some plots, always for 1 feature. Today I started working on the full script that creates all these plots, 1 per feature. This means, using for loops in R. Let’s see how this is going to work out. Today I mostly worked on data-manipulation. ...","",NA,NA,NA,NA,NA,NA,NA "141",142,"Tuesday, May 17, 2011 at 2:12am","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/reshape-package-in-r-long-data-format-to-wide-back-to-long-again/10150183076903583","In this post, I describe how to use the reshape package to modify a dataframe from a long data format, to a wide format, and then back to a long format again...","Borja Santos Zorrozúa It's a great command.Monday, May 16, 2011 at 1:42pm · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "142",143,"Sunday, May 15, 2011 at 8:21pm","6 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/competition-45000-for-identification-of-substances-from-electromagnetic-signatur/10150180713148583","Canadian hi-tech company offers $45,000 for the best algorithm for identification of substances from electromagnetic signatures. ——————————————FIND Technologies Inc. is a Canadian company that...","Danilo Antonio Verdugo Chaura a ver a ver!! quién se anima!!!Friday, May 13, 2011 at 5:07pm · LikeUnlike · 2Reply",NA,NA,NA,NA,NA,NA,NA "143",144,"Sunday, May 15, 2011 at 8:21pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-confusing-gamma-parameter/10150181085473583","Boris from Ottawa sent me this email about Introducing Monte Carlo Methods with R:As I went through the exercises and examples, I believe I found a typo in exercise 6.4 on page 176 that is not in the list of typos posted on your website...","",NA,NA,NA,NA,NA,NA,NA "144",145,"Sunday, May 15, 2011 at 8:21pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/speed-tests-for-r-and-a-look-at-the-compiler/10150180713153583","I’ve gotten back to work on speeding up R, starting with improving my suite of speed tests. Among other new features, this suite allows one to easily try out the “byte-code” compiler that is now a standard part of the latest release of R, version 2.13.0. You ...","",NA,NA,NA,NA,NA,NA,NA "145",146,"Saturday, May 14, 2011 at 3:57am","5 people like this","At least 1 comment","0","StatsTips","How Google and FaceBook Are Using R","http://www.dataspora.com/2009/02/predictive-analytics-using-r/","‎(March 26th Update: Video now available) Last night, I moderated our Bay Area R Users Group kick-off event with a panel discussion entitled “The R and Science of Predictive Analytics”, co-located with the Predictive Analytics World conference here in SF.","StatsTips It's a little old post (back in Feb 2011), but still very useful. You may find the video of this conference: http://www.lecturemaker.com/2009/02/r-kickoff-video/Saturday, May 14, 2011 at 3:58am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "146",147,"Friday, May 13, 2011 at 3:18am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/fitting-distribution-x-to-data-from-distribution-y/10150180128378583","I had someone ask me about fitting a beta distribution to data drawn from a gamma distribution and how well the distribution would fit. I’m not a “closed form” kinda guy. I’m more of a “numerical simulation” type of fellow. So I whipp...","",NA,NA,NA,NA,NA,NA,NA "147",148,"Friday, May 13, 2011 at 3:18am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-r-files-martin-morgan/10150180128393583","‎""The R-Files"" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community.    Name: Martin MorganProfession: Senior Staff Scientist at Fred Hutchinson Cancer Research CenterNationality: CanadianYears Using R: 7Known for: Director of the Bioconductor pro...","",NA,NA,NA,NA,NA,NA,NA "148",149,"Friday, May 13, 2011 at 3:18am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/makefiles-and-sweave/10150180128388583","A Makefile is a simple text file that controls compilation of a target file. The key benefit of using Makefile is that it uses file time stamps to determine if a particular action is needed...","",NA,NA,NA,NA,NA,NA,NA "149",150,"Thursday, May 12, 2011 at 3:00pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/xlconnect-frequently-asked-questions/10150179656978583","In the two months since the first release of XLConnect we have received some great feedback from the community. Most questions we saw seemed to cluster around a few central topics – memory issues, font styling and Excel feature support. ...","",NA,NA,NA,NA,NA,NA,NA "150",151,"Thursday, May 12, 2011 at 3:00pm","7 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/multivariate-probit-regression-using-direct-maximum-likelihood-estimators/10150179656998583","Consider a random pair of binary responses, i.e. with taking values 1 or 2. Assume that probability can be function of some covariates .The Gaussian vector latent structure A standard model is based a latent Gaussian structure, i.e...","Fernando Espindola just what I needed...Thursday, May 12, 2011 at 3:13pm · LikeUnlikeReplyOlga Ivina There is a function polr from the package MASS that also works very well.Thursday, May 12, 2011 at 11:50pm · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "151",152,"Thursday, May 12, 2011 at 2:46am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/high-low-clustering-on-intraday-high-frequency-sampled-data/10150177829883583","Nothing unusually exciting on this post, but I happened to be engaged in some particle based methods recently and made some simple visual observations as I was setting up some of the sampling environment in R.  I am also using Rkward and Ubuntu to generate, so I'm gathering everything from the ...","",NA,NA,NA,NA,NA,NA,NA "152",153,"Thursday, May 12, 2011 at 2:46am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/late-to-the-party-for-r-in-finance-blogging/10150177662978583","I meant to blog about the R/Finance conference during a lull, but I didn’t find too many. Unlike many conferences I’ve been to the structure of R/Finance was simple: one room and one speaker at a time. R...","",NA,NA,NA,NA,NA,NA,NA "153",154,"Thursday, May 12, 2011 at 2:46am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/abc-model-choice-by-dic/10150177662968583","Yet another paper on ABC model choice was posted on arXiv a few days ago, just prior to the ABC in London meeting that ended in the pub above (most conveniently located next to my B&B!). It is written by Olivier Francois and Guillaume Laval and the approach relies on DIC for running model selection...","",NA,NA,NA,NA,NA,NA,NA "154",155,"Tuesday, May 10, 2011 at 2:05pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/comments-on-an-r-connections-api/10150176588558583","I wrote this post months ago but never hit 'Publish'. But, the subject has changed little since then. So, here's to cleaning out the draft folder...R's connections are the heart of data/code/text input and output. Without connections, R would be crippled. Additional connections make R more .....","",NA,NA,NA,NA,NA,NA,NA "155",156,"Tuesday, May 10, 2011 at 2:05pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/accessing-databases-from-r/10150176825553583","Jeffrey Breen put together a useful slideshow on accessing databases from R. I use RODBC every single day to access my own local MySQL server from R. I've had trouble with RMySQL, so I've always used RODBC instead after setting up my localhost MySQL server as a Windows data source...","",NA,NA,NA,NA,NA,NA,NA "156",157,"Tuesday, May 10, 2011 at 2:05pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/registration-open-for-rmetrics-workshop-on-computational-finance/10150176825548583","The Rmetrics Association is once again holding its annual Workshop and Summer School on Computational Finance and Financial Engineering at Meielisalp (on Lake Thune in Switzerland) from June 26-30. ...","",NA,NA,NA,NA,NA,NA,NA "157",158,"Monday, May 9, 2011 at 8:10am","5 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/is-r-an-ideal-language-to-teach-the-fundamentals-of-programming-to-beginners/10150174060613583","I’m helping out some colleagues learn programming from having zero experience with it in any shape or form. It’s quite a daunting task in some senses, because, well, it may not be easy! Th...","Heywood Floyd You forgot Pascal. It's an excellent beginner's language and feeds into R and C. Pascal teaches arrays in a simpler fashion than R and C, doesn't have the dataframe/zoo complexity better saved for advanced users, and allows newbie development of numerical computation skill sets. Ideally they could learn how to Sum, Diff, and basic stats before jumping into R.Friday, May 6, 2011 at 5:31pm · LikeUnlike · 1ReplyUlrich Bodenhofer As much as I like R, my answer is a strong NO. The simpler and clearer a language is, the better it is for learning the basics of programming. People should be aware of how things are organized in the background to understand what can go wrong and why some programs are slow and others are faster. They should learn about allocation and deallocation of memory, organization of structured data types, etc. R is too powerful, too tolerant, and has too much implicit behavior. Pascal is a good start, I agree, but it is not very wide spread anymore. Maybe C is a good compromise, though it can also be quite a dirty language.Friday, May 6, 2011 at 5:39pm · LikeUnlikeReplyLuis Javier Cota Of the mentioned options, I'd say Python. It's easy to read, easy to code - the indentation shouldn't be problematic and getting used to the indentation would foster better style for future work. Check out the book, How To Think Like A Computer Scientist (Python) - great introduction to programming and it's free.Saturday, May 7, 2011 at 3:16am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "158",159,"Monday, May 9, 2011 at 8:10am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/shell-scripting-ec2-for-fun-and-profit/10150174300228583","Lately I’ve been doing some work with creating ad-hoc clusters of EC2 machines. My ultimate goal is to create a simple way to spin up a cluster of EC2 machines for use with Bryan Lewis’s very cool doRedis backend for the R foreach package. But that’s a whole other post. What...","",NA,NA,NA,NA,NA,NA,NA "159",160,"Monday, May 9, 2011 at 8:10am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/friday-function-nclass/10150174300238583","When you draw a histogram, an important question is “how many bar should I draw?”. This should inspire an indignant response. You didn’t become a programmer to answer questions, did you? No. The ...","",NA,NA,NA,NA,NA,NA,NA "160",161,"Friday, May 6, 2011 at 5:18am","5 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/using-r-for-map-reduce-applications-in-hadoop/10150172953358583","Data Scientist Antonio Piccolboni recently published this comparison of the various language and interfaces available for programming Big Data analysis tasks in the map-reduce framework....","",NA,NA,NA,NA,NA,NA,NA "161",162,"Friday, May 6, 2011 at 5:18am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-exercise-with-usda-data/10150172953363583","After the helpful comment by Bradley on my post Commodity Index Estimators,How about the National Agricultural Statistics Service (NASS)...","",NA,NA,NA,NA,NA,NA,NA "162",163,"Friday, May 6, 2011 at 5:18am","6 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/bank-of-america-merrill-lynch-bond-returns-on-st-louis-fed/10150172953353583","After all my complaining about proprietary data, the St...","",NA,NA,NA,NA,NA,NA,NA "163",164,"Friday, May 6, 2011 at 2:33am","0","View all 4 comments","0","Ronald Herrera","Hello I've a problem. when I make as.Date(""15jan2005"",format=""%d%b%Y"") result is NA. I'm in Win7. I tried with R 2.11.2 2.12.2 2.13.0. Any idea?",NA,NA,"Fabio Tejedor Con el ultimo lo cambia al formato ingles y puede ejecutar su linea.Friday, May 6, 2011 at 6:33pm · LikeUnlike · 1ReplyRonald Herrera Gracias!! man!Friday, May 6, 2011 at 7:12pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "164",165,"Wednesday, May 4, 2011 at 10:47pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/another-review-of-introducing-r/10150171452768583","The March 2011 issue of JASA contains a review of Introducing Monte Carlo Methods with R by Hedibert Lopes. As in the previous review, the poor quality of the figures is (rightly) pointed out by Hedie...","",NA,NA,NA,NA,NA,NA,NA "165",166,"Wednesday, May 4, 2011 at 10:47pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/commodity-index-estimators/10150171452773583","In this post I will show my first try at a commodity index substitute.  Regular readers know my frustration with proprietary data as I try to demonstrate various techniques to users who might not have the resources to pay for the data.  I have substituted US 10y Treasury Total Returns series as m...","",NA,NA,NA,NA,NA,NA,NA "166",167,"Wednesday, May 4, 2011 at 10:47pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-and-the-data-science-toolkit/10150171452763583","I recently decided to present a talk to the Denver R Users Group (DRUG) on how to make an R package (May 17). There were only two problems: (1) I’ve never made a package and (2) I had nothing in mind to package up. ...","",NA,NA,NA,NA,NA,NA,NA "167",168,"Monday, May 2, 2011 at 3:23pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/bayesian-confidence-intervals-obamas-that-addition-and-informality/10150170165053583","No “That” Left Behind?I came across a post on Language Log last week giving some evidence that Obama tends to add that to the prepared version of his speeches.For example, in a recent speech at George Washington University, the prepared speech was written asIt’s about the kind of future we want....","",NA,NA,NA,NA,NA,NA,NA "168",169,"Monday, May 2, 2011 at 3:23pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/visualizing-terrain-surface-indicies-with-scaled-arrows/10150169861973583","Hamish Bowman recently posted a new GRASS module (d.barb) that can be used to depict the direction and magnitude components of some vector (e.g. wind field) along a raster surface or at points in space...","",NA,NA,NA,NA,NA,NA,NA "169",170,"Monday, May 2, 2011 at 3:23pm","7 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/produce-authentic-math-formulas-in-r-graphics/10150169606898583","I remember a few weeks ago, there was a challenge in the R-help list to make the prime symbol in R graphics. In LaTeX, we simply write $X'$ or $X^\prime$. R has a rough support for math expressions (see demo(plotmath)) and they are certainly unsatisfactory for LaTeX users...","",NA,NA,NA,NA,NA,NA,NA "170",171,"Saturday, April 30, 2011 at 8:02am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/slides-from-rcpp-workshop-master-class-yesterday/10150168570158583","Romain and I just posted our slides from yesterday's Rcpp workshop and class (preceding the now-ongoing R/Finance conference). You can access the slides via my presentation page, or directly from here as Part 1 (Introduction), Part 2 (Details), Part 3 (Advanced) and Part 4 (Applications)...","",NA,NA,NA,NA,NA,NA,NA "171",172,"Saturday, April 30, 2011 at 8:02am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/forming-formulas/10150168748083583"," This post was kindly contributed by Coffee and Econometrics in the Morning - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "172",173,"Saturday, April 30, 2011 at 8:02am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/another-use-of-lspm-in-tactical-portfolio-allocation/10150168748063583","After the slightly unconventional use of LSPM presented in Slightly Different Use of Ralph Vince’s Leverage Space Trading Model, I thought I should follow up with something that more closely resembles my interpretation of Ralph Vince’s book.LSPM seems to work well for portfolio allocation pro...","",NA,NA,NA,NA,NA,NA,NA "173",174,"Saturday, April 30, 2011 at 1:21am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/videolecturesnet-recommender-system-competition/10150167081538583","A Guest post to R-bloggers by Bart Blaszczyk.* * * * * * * * This week a new data competition for the best recommendation system begins....","",NA,NA,NA,NA,NA,NA,NA "174",175,"Saturday, April 30, 2011 at 1:21am","5 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/data-aggregation-in-r-plyr-sqldf-and-datatable/10150167389048583","I’ve also previously put up a couple of posts about aggregating data in R. In this post, I’m going to be trying some other alternative methods for aggregating the dataset. Before I begin, I’d like to thank Matthew Dowle for highlighting these to me. It’s...","Matt Cooper http://stackoverflow.com/questions/5739344/within-id-check-for-matches-differences this question I put forward on SO touches on some of this and has some timed output as wellThursday, May 5, 2011 at 2:04am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "175",176,"Saturday, April 30, 2011 at 1:21am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/example-836-quadratic-equation-with-real-roots/10150168570153583","We often simulate data in SAS or R to confirm analytical results. For example, consider the following problem from the excellent text by Rice:Let U1, U2, and U3 be independent random variables uniform on [0, 1]...","",NA,NA,NA,NA,NA,NA,NA "176",177,"Saturday, April 30, 2011 at 1:21am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-30-31-errorbars-here-errorbars-there/10150167389058583","Today I have been playing with the errorbars from knime. To recreate the plot from http://flyordie.sin.khk.be/2011/04/20/day-27-a-lot-of-graphics-in-one-place/ I had to be able to create 2 y-axis, and multiple plots on 1 graph...","",NA,NA,NA,NA,NA,NA,NA "177",178,"Thursday, April 28, 2011 at 9:50pm","0","0","0","Matus Kubak","hi there ... does anyone know how to change font size in pyramid.plot {plotrix}??? thank you very much!",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "178",179,"Wednesday, April 27, 2011 at 3:29pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/great-faj-article-on-statistical-measure-of-financial-turbulence-part-2/10150166578218583","I did not intend for this to be a multi-part series, but after some clear thinking at the beach over the weekend, I decided that it needed some more analysis.  For those of you that read the article or know Mahalanobis distance, the measure I presented in my post Great FAJ Article on Statistical ...","",NA,NA,NA,NA,NA,NA,NA "179",180,"Tuesday, April 26, 2011 at 5:41pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-bloggers/10150165808323583","I recently found a great resource for R in the blogosphere, the R Bloggers Blog Aggregator. Basically, the site aggregates posts from a bunch of blogs about R (like this one!) into a giant feed of uses for R...","",NA,NA,NA,NA,NA,NA,NA "180",181,"Tuesday, April 26, 2011 at 5:41pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/bayesian-job-in-cambridge/10150165808303583","Here is an email that could appeal to some readers:Job in Cambridge MRC-BSU – Bayesian statistician Career development fellow MRC Biostatistics Unit, CambridgeWe are offering an exciting opportunity to work on Bayesian models for infectious disease dynamics. ...","",NA,NA,NA,NA,NA,NA,NA "181",182,"Tuesday, April 26, 2011 at 5:41pm","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/automatically-save-your-plots-to-a-folder/10150165808298583","Suppose you're working on a problem that involves a loop for calculations. At each iteration inside the loop, you want to construct a plot. Not only do you want to see the plot, but you would like to save each plot for a presentation, report or paper...","Matt Cooper I always like to useThursday, May 5, 2011 at 2:07am · LikeUnlikeReplyMatt Cooper paste(Sys.Date(),""_my_name.png"",sep="""")Thursday, May 5, 2011 at 2:07am · LikeUnlikeReplyMatt Cooper for my naming of output files, then if I work on the same data the next day I don't override things etc and there's some trackability includedThursday, May 5, 2011 at 2:08am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "182",183,"Monday, April 25, 2011 at 8:01pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/intuitive-visualizations-of-categorization-for-non-technical-audiences/10150164975563583","For a project I’m working on at work, I’m building a predictive model that categorizes something (I can’t tell you what) into two bins. There is a default bin that 95% of the things belong to and a bin that the business cares a lot about, containing 5% of the things. Some...","",NA,NA,NA,NA,NA,NA,NA "183",184,"Monday, April 25, 2011 at 8:01pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rinside-024/10150164975603583","After several months, it was time for a new release 0.2.4 of RInside which is now on CRAN. RInside is a set of convenience classes which facilitate embedding of R inside of C++ applications and programs, using the classes and functions provided by the Rcpp R and C++ integration package...","",NA,NA,NA,NA,NA,NA,NA "184",185,"Monday, April 25, 2011 at 8:01pm","6 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/further-adventures-in-visualisation-with-ggplot2/10150164975578583","So I previously took a look at some data of player performance from a computer game. In this post, I’m going to do some further visualisations using ggplot2. ...","",NA,NA,NA,NA,NA,NA,NA "185",186,"Sunday, April 24, 2011 at 10:43pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpparmadillo-0219/10150164145548583","Last Monday, Conrad Sanderson released version 1.2.10 of his most excellent Armadillo templated C++ library for linear algebra; I followed up the same day with version 0.2.19 of our RcppArmadillo wrapper for R based on our Rcpp library...","",NA,NA,NA,NA,NA,NA,NA "186",187,"Sunday, April 24, 2011 at 10:43pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/measuring-association-using-odds-ratios/10150164145553583","In my last two posts, I have used the UCI mushroom dataset to illustrate two things.  The first was the use of interestingness measures to characterize categorical variables, and the second was the use of binary confidence intervals to visualize the relationship between a categorical predictor vari...","",NA,NA,NA,NA,NA,NA,NA "187",188,"Sunday, April 24, 2011 at 1:45am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/statisfaction-on-r-bloggers/10150163409948583","This is the first post of Statisfaction on R-bloggers. As an introduction: we are PhD students and postdocs at CREST, a research centre on economics and statistics located in Paris, France...","",NA,NA,NA,NA,NA,NA,NA "188",189,"Sunday, April 24, 2011 at 1:45am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/another-nice-rcpp-example/10150163409938583","While preparing my slides for the Rcpp workshop this Thursday, I had wondered about more nice examples motivating Rcpp. So I posed a quick question on the rcpp-devel list.And I received a few friendly answers...","",NA,NA,NA,NA,NA,NA,NA "189",190,"Sunday, April 24, 2011 at 1:45am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/location-tracking-on-android-too/10150163409928583","This week it was revealed that the iPhone stores users’ locations, and this immediately caused a huge firestorm of commentary by tech geeks, panic among privacy advocates, and delight to data geeks like myself. ...","",NA,NA,NA,NA,NA,NA,NA "190",191,"Saturday, April 23, 2011 at 2:43am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/zoo-slows-down-your-linear-model-function/10150162655628583","I was a bit frustrated when I read Aris's comment to this post about speed of his calculations in Matlab. So I changed the time span of my dataset to 5 years and repeated the whole code. It was VERY disappointing to get the results after more than 5 hours! That's really REALLY bad...","",NA,NA,NA,NA,NA,NA,NA "191",192,"Saturday, April 23, 2011 at 2:43am","5 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/visualizing-iphone-location-tracking-with-r-and-google-maps/10150162655643583","According to security researchers the iPhone 4 is logging location data in the background, and apparently sending some part of that data to Apple every day or few days (Wired). Silently recording location data is bad enough, but the data itself is easily recoverable from an iPhone backup...","",NA,NA,NA,NA,NA,NA,NA "192",193,"Saturday, April 23, 2011 at 2:43am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/how-to-load-your-iphone-location-data-into-r/10150162655638583","Earlier this week, data scientists Pete Warden and Alasdair Allen reported that iPhones and cell-enabled iPads keep an internal log of the devices location, which is accessible from the backup that iTunes creates when you sync the device...","",NA,NA,NA,NA,NA,NA,NA "193",194,"Friday, April 22, 2011 at 12:22am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/lack-of-confidence-revised/10150161780853583","Following the comments on our earlier submission to PNAS, we have written (and re-arXived) a revised version where we try to spell out (better) the distinction between ABC point (and confidence) estimation and ABC model choice, namely that the problem was at another level for Bayesian model choice...","",NA,NA,NA,NA,NA,NA,NA "194",195,"Friday, April 22, 2011 at 12:22am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/great-faj-article-on-statistical-measure-of-financial-turbulence/10150161780858583","I particularly liked this well-written paper, since unlike most academic research, I was able to understand it, replicate it, and incorporate it.  I know that the Financial Analyst Journal is not considered by the academic community as a top-tier journal, but its insights have deepened my ...","",NA,NA,NA,NA,NA,NA,NA "195",196,"Friday, April 22, 2011 at 12:22am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-28-ggplot2-in-knime/10150161780868583","If you haven’t read yesterday’s post, I advise you to do so, because this is the fix of yesterday. Day #27: A lot of graphics in one place I found out how to use ggplot2 in knime. Sa...","",NA,NA,NA,NA,NA,NA,NA "196",197,"Wednesday, April 20, 2011 at 10:21pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/new-favorite-test-of-us-monetary-policy-limits/10150160865658583","After a little additional thought, I discovered that my Death Spiral Warning Graph post can be improved through the isolation of the expected inflation component of US 10y yields provided by the US 10y yield – US 10y TIP yield.  Unfortunately, it more accurately reveals the cost of aggressive US Fe...","",NA,NA,NA,NA,NA,NA,NA "197",198,"Wednesday, April 20, 2011 at 10:21pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/transaction-cost-analysis-and-pre-trade-analysis/10150160865663583","Transaction cost analysis (TCA) is the framework to achieve best execution in trading context...","",NA,NA,NA,NA,NA,NA,NA "198",199,"Wednesday, April 20, 2011 at 10:21pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-27-a-lot-of-graphics-in-one-place/10150160865648583","assignment in R Today my internship-promotor gave me the assignment to create this chart in R. This means: I get a lot of data and put a certain column on a barchart for each plate. On top of that data, you place 2 errorbars...","",NA,NA,NA,NA,NA,NA,NA "199",200,"Tuesday, April 19, 2011 at 9:06pm","0","View all 4 comments","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rstudio-revolution-analytics-and-deducer-a-tale-of-three-guis/10150160039133583","I’m in the process of moving from SPSS to R at the moment. It’s not been the easiest of rides, but then learning how to do a core part of your job never really should be. It’s been fun, though – don’t get me wrong – it’s definitely been an adventure!! Here I’m goi...","R bloggers MacOSX 6? when is it from?Wednesday, April 20, 2011 at 7:59am · LikeUnlikeReplyDirk Dittmer Pardon my brevity: 10.6.7 Any help would be much apprechiated.Wednesday, April 20, 2011 at 1:05pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "200",201,"Tuesday, April 19, 2011 at 9:06pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/nba-logistic-regression-and-mean-substitution/10150160039123583","‎[Note: I wrote this on a flight and didn't proofread it at all...","",NA,NA,NA,NA,NA,NA,NA "201",202,"Tuesday, April 19, 2011 at 9:06pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/example-835-grab-true-not-pseudo-random-numbers-passing-api-urls-to-functions-or/10150160039118583","Usually, we're content to use a pseudo-random number generator. But sometimes we may want numbers that are actually random-- an example might be for randomizing treatment status in a randomized controlled trial.The site Random.org provides truly random numbers based on radio static...","",NA,NA,NA,NA,NA,NA,NA "202",203,"Monday, April 18, 2011 at 8:18pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/progress-reading-sas-sas7bdat-files-natively-in-r/10150159224028583","This post describes some preliminary results from a compatibility study of the SAS sas7bdat file format. The most current results stored in a github repository here: sas7bdatThe ultimate goal is a native solution to the incompatibility between open-source statistical software (e.g...","",NA,NA,NA,NA,NA,NA,NA "203",204,"Monday, April 18, 2011 at 8:18pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/weight-compared-to-risk-fraction/10150159224068583","How well do asset weight constraints constrain risk?The setupIn “Unproxying weight constraints” I claimed that many constraints on asset weights are really a proxy for constraining risk. That is not a problem if weights are a good proxy for risk. S...","",NA,NA,NA,NA,NA,NA,NA "204",205,"Monday, April 18, 2011 at 8:18pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/using-r-sweave-and-latex-to-integrate-animations-into-pdfs/10150159224043583","The first week of April I attended an excellent workshop on biplots held by Michael Greenacre and Oleg Nenadić at the Gesis Institute in Cologne, Germany. Throughout his presentations, Michael used animations to visualize the concepts he was explaining....","",NA,NA,NA,NA,NA,NA,NA "205",206,"Sunday, April 17, 2011 at 10:01pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/exporting-r-graphics-as-latex-code-version-061-of-the-tikzdevice-package-is-out/10150158438533583","‎(Guest post on R-bloggers by Charlie Sharpsteen)Cameron and I are pleased to announce version 0.6.0 of the tikzDevice package which should be available shortly at your local CRAN mirror...","",NA,NA,NA,NA,NA,NA,NA "206",207,"Sunday, April 17, 2011 at 10:01pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/statistics-without-maths/10150158438548583","I got an interesting message from Chris Atherton the other day who has offered to do a workshop at the Technical Communications UK conference on statistics and data visualisation...","",NA,NA,NA,NA,NA,NA,NA "207",208,"Sunday, April 17, 2011 at 10:01pm","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpp-article-in-jss/10150158438558583","The Journal of Statistical Software published our Rcpp article This post was kindly contributed by Romain Francois, Professional R Enthusiast - Tag - R - go there to comment and to read the full post. ","Romain François Join the Dirk side of the code ...Monday, April 18, 2011 at 2:23pm · LikeUnlikeReplyRomain François Rcpp is the pathway to many abilities some R programmers consider to be unnaturalMonday, April 18, 2011 at 2:24pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "208",209,"Sunday, April 17, 2011 at 12:59am","5 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/speeding-up-agent-based-simulations-with-data-frames-in-r/10150157796108583","In health economics it is common to use agent-based simulations for exploring epidemiological models, prevention policies, and clinical interventions, among other things. In C++ I enjoy using object-oriented design to build these agent-based models. It feels so natural...","",NA,NA,NA,NA,NA,NA,NA "209",210,"Sunday, April 17, 2011 at 12:59am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/historical-bond-price-and-total-returns-from-10y-yield-series/10150157796113583","Without access to Barclays or Merrill Bond Indicies to the 1970s or Ned Davis to 1950, studying historical bond returns is very difficult.  Here is a way to derive price and total returns on the 10 year US Treasury back to 1962.  I would like to extend to 1871, but monthly yields from Shiller and F...","",NA,NA,NA,NA,NA,NA,NA "210",211,"Sunday, April 17, 2011 at 12:59am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/trackman-position-needs-r-knowledge/10150157796103583","Thought some of the R-Blogger readers would be interested in the position linked below. If you're a baseball fan and like working in R, this is a fun company that seems to be getting more and more press...","",NA,NA,NA,NA,NA,NA,NA "211",212,"Saturday, April 16, 2011 at 3:52am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/visualizing-tax-brackets/10150157164838583","With Tax Day fast approaching here in the US, there's been a lot of discussion about tax policy and in particular the tax rates paid by the highest income earners...","",NA,NA,NA,NA,NA,NA,NA "212",213,"Saturday, April 16, 2011 at 3:52am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/slides-and-replay-for-pmml-webinar/10150157164833583","If you missed Wednesday's webinar on Deploying Predictive Analytics with Revolution R, PMML and ADAPA, the presentation slides and the replay (in WMV, reg. req'd) format are now available for download...","",NA,NA,NA,NA,NA,NA,NA "213",214,"Saturday, April 16, 2011 at 3:52am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/friday-function-setinternet2/10150157164828583","Corporate IT networks are a pain for programmers. Ideally, when programming, you want the freedom to download, install and run any software that you want. Unfortunately, in the interests of security, many programmers find themselves a little restricted at the office...","",NA,NA,NA,NA,NA,NA,NA "214",215,"Friday, April 15, 2011 at 6:17am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/easy-upgrading-of-r/10150156499553583","For those who are excited about the new 2.13.0 release of R (particularly the compiler package) but are grumbling about having to remember what packages they have and re-install them, see this great advice or this piece on upgrading in osx for how to automate the process...","",NA,NA,NA,NA,NA,NA,NA "215",216,"Friday, April 15, 2011 at 6:17am","9 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-2130-is-released/10150156499573583","The new R 2.13.0 is out! Get the source code from here.Take a look at these posts for some miscellaneous advices to make the upgrade easier.Also this thread on stackoverflow can be of some value.Fell free to contribute with suggestions about how to upgrade your R installation. Thi...","",NA,NA,NA,NA,NA,NA,NA "216",217,"Friday, April 15, 2011 at 6:17am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/in-case-you-missed-it-march-roundup/10150156499558583","In case you missed them, here are some articles from February of particular interest to R users.The doSMP package, which enables parallel processing for R on multiprocessor machines, is now available on CRAN.The Offensive Politics blog provided R code used to make a map of precinct returns in the C...","",NA,NA,NA,NA,NA,NA,NA "217",218,"Thursday, April 14, 2011 at 8:47am","12 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-2130-released/10150155812218583","The R Core Group has released the latest update to open-source R, R 2.13.0 is now available...","",NA,NA,NA,NA,NA,NA,NA "218",219,"Thursday, April 14, 2011 at 8:47am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/le-monde-puzzle-13/10150155812223583","This week, Le Monde offers not one but three related puzzles:Is it possible to label the twelve edges of a cube by consecutive numbers such that the sum of the edge numbers at any of the eight nodes is constant?Is it possible to label the eight nodes of a cube by consecutive numbers such that the...","",NA,NA,NA,NA,NA,NA,NA "219",220,"Thursday, April 14, 2011 at 8:47am","2 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/compiler-and-runireggibbs-bayesm/10150155812228583","So everyone's excited about the new R 2.13 release because of the compiler package.Apparently it is easy to get a 3x speed increase by simply compiling a function.Doing a lot of the MCMC stuff, I am particularly excited about speed in R...","Ulrich Bodenhofer I also played around with a few benchmarks. My impression is that, if the code is already well-done (e.g. making smart use of matrix operations), then the improvement is more or less zero. This is not surprising, but intuitively clear: if most of the time is spent in already optimized functions written in C, where should the improvement come from? Anything else would be illogical or Voodoo. To put it provocatively: the more improvement you observe when compiling a function, the lousier the uncompiled code was.Thursday, April 14, 2011 at 2:45pm · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "220",221,"Wednesday, April 13, 2011 at 10:50am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/journal-of-statistical-software-vol-40/10150155080698583","The latest edition of the Journal of Statistical Software is out, with plenty of interesting articles for R users...","",NA,NA,NA,NA,NA,NA,NA "221",222,"Wednesday, April 13, 2011 at 10:50am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/using-tikzdevice-with-sweave-in-r-213/10150155080703583","R 2.13 introduces an option to specify a custom graphics device in an Sweave code chunk. This is really cool and allows you to use tikzDevice output like pgfSweave does...","",NA,NA,NA,NA,NA,NA,NA "222",223,"Wednesday, April 13, 2011 at 10:50am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/screening-for-predictive-characteristics-and-a-mea-culpa/10150155080693583","In my last post, I considered the UCI mushroom dataset and characterized the variables included there using four different interestingness measures.  When I began drafting this post, my intention was to consider the question of how the different mushroom characteristics included in this dataset ...","",NA,NA,NA,NA,NA,NA,NA "223",224,"Tuesday, April 12, 2011 at 12:43pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rstudio-updates-to-beta-2/10150154358633583","The folks over at Rstudio have released a new update to their open-source R GUI, currently in beta test. This Beta 2 release adds more customizable layouts, editor improvements and new editing themes...","",NA,NA,NA,NA,NA,NA,NA "224",225,"Tuesday, April 12, 2011 at 12:43pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/historical-sources-of-bond-returns-with-shiller-data-1919-2011/10150154358623583","And as usual, I always want a longer data set, so after a little playing with R-Excel, we can extend our historical sources of bond returns to 1919.  If nothing else, maybe you can find other uses for the Shiller Dataset in R.From TimelyPortfolioAnd as an added bonus, we can prepare a boxplot.From ...","",NA,NA,NA,NA,NA,NA,NA "225",226,"Tuesday, April 12, 2011 at 12:43pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/box-plot-with-ggplot2/10150154358618583","Hi,in these days I'm creating lots and lots of box plot with ggplot2.The look of them is really good and you can change every bit of code so that you can customize the plot completely.Here is the code I'm using with a test data file to try it:BoxPlot.zipThe result looks like this: This post was...","",NA,NA,NA,NA,NA,NA,NA "226",227,"Monday, April 11, 2011 at 2:45pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/vienna-may-2011-advanced-topics-in-financial-econometrics-lectures/10150153623123583","This post was kindly contributed by Rmetrics blogs - go there to comment and to read the full post.","",NA,NA,NA,NA,NA,NA,NA "227",228,"Monday, April 11, 2011 at 2:45pm","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/mixtures-in-madrid/10150153623143583","As I already did two years ago, in connection with the double degree between UAM and Dauphine, I will give a short graduate course at the Universidad Autonoma de Madrid (UAM). It will be part of the regular fourth year statistics course and will focus on mixtures, as given in of Bayesian Core...","Juan Riera Welcome to Spain, then. Enjoy!Monday, April 11, 2011 at 7:28pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "228",229,"Monday, April 11, 2011 at 2:45pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/quality-comparison-of-floating-point-maths-libraries/10150153623133583","What is the best way to compare the quality of floating-point math libraries (e.g., sin, cos and log)...","",NA,NA,NA,NA,NA,NA,NA "229",230,"Sunday, April 10, 2011 at 5:24pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-super-easy-simple-dimple-backtester-in-r/10150152879338583","I cut my finger on a paring knife this morning. Don't use a sharp knife to spread butter on your toast. It's better to limit yourself to using dull kitchen utensils until the caffeine kicks in. No matter, I still have most of my digits to type in a simple backtesting program in R...","",NA,NA,NA,NA,NA,NA,NA "230",231,"Saturday, April 9, 2011 at 8:00pm","5 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/fast-two-way-sync-in-ubuntu/10150151940448583","I love the portability of a laptop. I have a 45 min train ride twice a day and I fly a little too, so having my work with me on my laptop is very important...","",NA,NA,NA,NA,NA,NA,NA "231",232,"Saturday, April 9, 2011 at 8:00pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/new-versions-of-ggobi-and-rggobi-for-windows-users/10150151940483583","For those who have been struggling with the installation of GGobi and the rggobi package under Windows: a major update of GGobi 2.1.9 is that GTK+ has been bundled with GGobi, so the installation of GTK+ is no longer required (I recommend you to uninstall it if it is not used elsewhere in your...","",NA,NA,NA,NA,NA,NA,NA "232",233,"Saturday, April 9, 2011 at 8:00pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-20-rggs-not-working-here-i-want-it/10150151940468583","If you didn’t read the post from yesterday, I urge you to do so, or you won’t get what I’m writing here. http://flyordie.sin.khk.be/2011/04/08/day-19-rgg-s-a-btch/ So, coming back from yesterday, I had a talk with my supervisor who told me to “cheat” a bit. I used t...","",NA,NA,NA,NA,NA,NA,NA "233",234,"Saturday, April 9, 2011 at 12:25am","2 people like this","At least 1 comment","0","Mukul Pal","We believe in R","http://brenocon.com/blog/2009/02/comparison-of-data-analysis-packages-r-matlab-scipy-excel-sas-spss-stata/","Lukas and I were trying to write a succinct comparison of the most popular packages that are typically used for data analysis. I think most people choose one based on what people around them use or what they learn in school, so I’ve found it hard to find comparative information. I’m posting the ta","R bloggers Hi Mukul. Very nice. Would you like to create an R category and a SAS category, and add them to: r-bloggers.com and sas-x.com ? Cheers, TalSaturday, April 9, 2011 at 7:59am · LikeUnlikeReplyMukul Pal yes. will do. thanksSaturday, April 9, 2011 at 9:25am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "234",235,"Friday, April 8, 2011 at 10:36pm","7 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/text-data-mining-with-twitter-and-r/10150151155073583","Twitter is a favorite source of text data for analysis: it’s popular (there is a huge volume of variety on all topics) and easily accessible using Twitter’s free, open APIs which are easily consumable in JSON and ATOM formats. So...","",NA,NA,NA,NA,NA,NA,NA "235",236,"Friday, April 8, 2011 at 10:36pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/fixing-aberrant-files-using-r-and-the-shell-a-case-study/10150151155083583","Once in a while, you embark on what looks like a simple computational procedure only to encounter frustration very early on. “I can’t even read my file into R!” you cry.Step back, take a deep breath and take note of what the software is trying to tell you. Most...","",NA,NA,NA,NA,NA,NA,NA "236",237,"Friday, April 8, 2011 at 10:36pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-19-rggs-a-bh/10150151155078583","A listbox is (as far as i thought) supposed to select one or more items in the list and put them in a variable. Well, not for the rgg listbox. Whatever you select, you’ll get an error.                   So today was not a fun day. I have [...","",NA,NA,NA,NA,NA,NA,NA "237",238,"Friday, April 8, 2011 at 1:01am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/buffon-versus-bertrand-in-r/10150150254998583","Following my earlier post on Buffon’s needle and Bertrand’s paradox, above are four outcomes corresponding to four different generations (among many) of the needle locations. The upper right-hand side makes a difference in the number of hits (out of 1000). Th...","",NA,NA,NA,NA,NA,NA,NA "238",239,"Friday, April 8, 2011 at 1:01am","5 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/extra-extra-get-your-gridextra/10150150255003583","The more I use it, the deeper I fall in love with ggplot2. I know, some of you have heard me kvel about it ad nauseum (oh, yiddish and latin in one sentence – extra points!). ...","Dirk Dittmer just what I was looking for last nightFriday, April 8, 2011 at 1:30pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "239",240,"Friday, April 8, 2011 at 1:01am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/time-horizon-in-forecasting-and-rules-of-thumb/10150150255008583","I recently received an email about forecasting and rules of thumb. ""Dans la profession [...] se transmet une règle empirique qui voudrait que l'on prenne un historique du double de l'horizon de prévision : 20 ans de données pour une prévision à 10 ans, etc... Je ...","",NA,NA,NA,NA,NA,NA,NA "240",241,"Thursday, April 7, 2011 at 10:12am","0","At least 1 comment","0","Nam Lethanh","Does R has similar command like ""GO TO"" in Fortran? appreciate if you can help",NA,NA,"R bloggers You might want to ask this on stackoverflow.com with tagging the question with rThursday, April 7, 2011 at 3:04pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "241",242,"Thursday, April 7, 2011 at 3:19am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-18-error-in-knime-node-r-plot/10150149535583583","Hello again Today I am experiencing something weird. The last days I have been experimenting with the R-scripting nodes from knime and with their templates. But today this happened...","",NA,NA,NA,NA,NA,NA,NA "242",243,"Thursday, April 7, 2011 at 3:19am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/when-buffon-meets-bertrand/10150149535588583","When Peter Diggle gave his “short history” of spatial statistics this morning (I typed this in the taxi from Charles de Gaulle airport, after waiting one hour for my bag!), he started with a nice slide about Buffon’s needle (and Buffon’s portrait), since Julian Besag was often prone to give this pr...","",NA,NA,NA,NA,NA,NA,NA "243",244,"Thursday, April 7, 2011 at 3:19am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpp-workshop-master-class-on-april-28-in-chicago/10150149535593583"," I realized I never announced this on the blog, so without further ado....Rcpp Workshop in Chicago on April 28, 2011 This year's R/Finance conference will be preceded by a full-day masterclass on Rcpp and related topics which will be held on Thursday, April 28, 2011, on the University of Illinois...","",NA,NA,NA,NA,NA,NA,NA "244",245,"Wednesday, April 6, 2011 at 7:06am","0","0","0","Vincent Granville","","http://www.analyticbridge.com/xn/detail/2004291:Topic:95204","The code below compute stats by group=country. It assumes that your data set has labels in the first row, with at least 3 variables: income, age, country. You…","",NA,NA,NA,NA,NA,NA,NA "245",246,"Wednesday, April 6, 2011 at 5:00am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/how-to-search-the-documentation-of-all-cran-packages/10150148769168583","Ever tried to find a specific function or algorithm in R that you're sure that someone has implemented in a CRAN package, but you don't know which one...","",NA,NA,NA,NA,NA,NA,NA "246",247,"Wednesday, April 6, 2011 at 5:00am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpp-093/10150148769173583","A brand new and shiny 0.9.3 release of Rcpp is now on CRAN and Debian...","",NA,NA,NA,NA,NA,NA,NA "247",248,"Wednesday, April 6, 2011 at 5:00am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/example-833-merging-data-sets-one-to-many/10150148769178583","It's often necessary to combine data from two data sets for further analysis. Such merging can be one-to-one, many-to-one, and many-to-many. The most common form is the one-to-one match, which we cover in section 1.5.7...","",NA,NA,NA,NA,NA,NA,NA "248",249,"Tuesday, April 5, 2011 at 7:05am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/book-ggplot2-by-hadley-wickham/10150148028643583","All my recent plots are built using ggplot2 package. I don’t know if my dear readers have noticed the difference, but from my point of view, ggplot2 allows to create nice looking and aesthetics plots. ...","",NA,NA,NA,NA,NA,NA,NA "249",250,"Tuesday, April 5, 2011 at 7:05am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rquantlib-windows-binary-on-cran/10150148028648583","Dirk Eddelbuettel has recently released RQuantLib-0.3.7, which contains the necessary QuantLib builds to allow the CRAN servers to build the Windows binary...","",NA,NA,NA,NA,NA,NA,NA "250",251,"Tuesday, April 5, 2011 at 7:05am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-101-vectors/10150148028638583","Vectors are a basic data structure in R and are created using the c() function. Unlike data frames and lists, the elements of a vector must be of the same mode.Functions can be used on a vector. For example, length(x) can be used to find the number of elements in x...","",NA,NA,NA,NA,NA,NA,NA "251",252,"Monday, April 4, 2011 at 9:05am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/interestingness-measures/10150147178893583","Probably because I first encountered them somewhat late in my professional life, I am fascinated by categorical data types.  Without question, my favorite book on the subject is Alan Agresti’s Categorical Data Analysis (Wiley Series in Probability and Statistics), which provides a we...","",NA,NA,NA,NA,NA,NA,NA "252",253,"Monday, April 4, 2011 at 9:05am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/feed-your-machine-brain/10150147178883583","Few can tell you what goes into a chicken nugget, but most will agree that it's good for your brain. If you're a little sluggish and can't focus, what do you normally do? That's right, you pop a couple chicken nuggets. And similar to our brains, our algorithms need some food too, to think properly...","",NA,NA,NA,NA,NA,NA,NA "253",254,"Sunday, April 3, 2011 at 11:29am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/maps-of-solar-radiation/10150146326108583","The Atmospheric Science Data Center (ASDC) at NASA Langley Research Center offers several data sources. For example, it is possible to download a text file with the 22-year (July 1983 – June 2005) monthly and annual average of global horizontal irradiation. ...","",NA,NA,NA,NA,NA,NA,NA "254",255,"Sunday, April 3, 2011 at 11:29am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/violin-and-boxplots-with-lattice-and-r/10150146326113583","A violin plot is a combination of a boxplot and a kernel density plot. Lattice includes the panel.violin function for this graphical tool...","",NA,NA,NA,NA,NA,NA,NA "255",256,"Sunday, April 3, 2011 at 11:29am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-very-short-and-unoriginal-introduction-to-snow/10150146326133583","As Jian-Feng rightly pointed out in a comment on my guide to setting up snow on the OSC cluster, it was probably somewhat cavalier of me to say:Getting snow to run properly on single machines, or ever with a cluster of machines via ssh connections is fairly trivial.In an effort to redeem myself, I...","",NA,NA,NA,NA,NA,NA,NA "256",257,"Saturday, April 2, 2011 at 4:19pm","0","0","0","Jeromie Williams - Examiner.com Columnist","Examiner.com is expanding and has thousands of columns available right now. If you are in the US or Canada and you want to get paid, get exposure and be part of an expanding community of dynamic writers, then just follow this link and apply - http://exm.nr/fm0inU","http://exm.nr/fm0inU","","",NA,NA,NA,NA,NA,NA,NA "257",258,"Saturday, April 2, 2011 at 2:20pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/plot-the-scoring-streak-of-an-nhl-player-with-r/10150145602173583","I am a big Boston Bruins fan and have enjoyed the ups and downs over the last few years, regardless of the catastrophes that have occurred during the playoffs...","",NA,NA,NA,NA,NA,NA,NA "258",259,"Saturday, April 2, 2011 at 2:20pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/phylometa-from-r-udpate/10150145602183583","A while back I posted some messy code to run Phylometa from R, especially useful for processing the output data from Phylometa which is not easily done. The code is still quite messy, but it should work now. I have run the code with tens of different data sets and phylogenies so it should work...","",NA,NA,NA,NA,NA,NA,NA "259",260,"Saturday, April 2, 2011 at 2:20pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/bond-market-as-a-casino-game-part-1/10150145602188583","With this post, I am doing something I try very hard to avoid, especially when communicating to my clients, and that is blurring the line between investing and gambling.  But after reading all of Reuven Brenner’s books and finishing Ralph Vince Leverage Space Trading Model, I think blurring the li...","",NA,NA,NA,NA,NA,NA,NA "260",261,"Friday, April 1, 2011 at 4:32pm","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/what-is-r-really/10150144976283583","On CRAN, the official web home of all things R it says,R is a free software environment for statistical computing and graphics.Well, that sounds all hunky dory. But let’s take a close look at what this statement really is says.“free software” - what does this mean? Free...","Sebnem Er You just read my mind. That is so true that R is not only a statistical package but also an environment for operational research and other computational techniques. Therefore your proposal is perfect.Friday, April 1, 2011 at 7:14pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "261",262,"Friday, April 1, 2011 at 4:32pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/revolutions-chief-scientist-r-is-the-language-of-the-future/10150144976298583","Revolution Analytics' Chief Scientist Lee Edlefsen was a presenter at the Structure Big Data conference in New York last week. You can download the slides from his talk, The Coming Revolution in Statistics, here (PDF 418k). ...","",NA,NA,NA,NA,NA,NA,NA "262",263,"Friday, April 1, 2011 at 4:32pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/empirical-software-engineering-is-five-years-old/10150144976278583","Science and engineering are built on theoretical models that are tested against measurements of ‘reality’. U...","",NA,NA,NA,NA,NA,NA,NA "263",264,"Thursday, March 31, 2011 at 6:43pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/comparison-of-uah-and-rss-time-series-with-common-baseline/10150144285343583","In this post I set both UAH 5.4 and RSS 3.3 global temperature anomaly series to a common baseline period (1981-2010) to compare them...","",NA,NA,NA,NA,NA,NA,NA "264",265,"Thursday, March 31, 2011 at 6:43pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/image-classification-limits-part-2/10150144285338583","Recently i released the first 64-bit versions of Bio7 bundled with a 64-bit Java Virtual Machine.I’m always curious how far i can go using both applications together to do image analysis (especially classification) with huge images coming e.g. from satellites. ...","",NA,NA,NA,NA,NA,NA,NA "265",266,"Thursday, March 31, 2011 at 6:43pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/baseball-t-tests-and-statistical-surprises/10150144285328583","Are MLB players better hitters now than they were 20 years ago...","",NA,NA,NA,NA,NA,NA,NA "266",267,"Wednesday, March 30, 2011 at 8:34pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/globally-set-digits-in-sweave/10150143605673583","I use Sweave regularly for most of my writing and love the way it works. However, one issue that often irks me is the inability to globally set the number of digits to display. Here is a minimal example that illustrates my point...","",NA,NA,NA,NA,NA,NA,NA "267",268,"Wednesday, March 30, 2011 at 8:34pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/tor-anonymity-network-using-r-for-website-graphics/10150143605693583","These graphics look familiar. From the Tor Metrics Portal: ""The metrics website uses R to generate custom graphs on demand."" See more here: http://metrics.torproject.org/graphs.html. This post was kindly contributed by BioStatMatt » R - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "268",269,"Wednesday, March 30, 2011 at 8:34pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpp-workshop-in-chicago-on-april-28th/10150143605688583","OverviewThis year's R/Finance conference will be preceded by a full-day masterclass on Rcpp and related topics which will be held on Thursday, April 28, 2011, the Univ...","",NA,NA,NA,NA,NA,NA,NA "269",270,"Tuesday, March 29, 2011 at 10:35pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-13-more-plots-colors-and-loess-smoothing/10150124721573583","Yesterday I tried to insert some more R code into knime...","",NA,NA,NA,NA,NA,NA,NA "270",271,"Tuesday, March 29, 2011 at 10:35pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-14-another-r-course/10150124721588583","So today I’m going to follow another R-course which is supposed to tell me more about Flowcytometry in R. I’ll keep you up to date This post was kindly contributed by Stageverloop Kris » R-En - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "271",272,"Tuesday, March 29, 2011 at 10:35pm","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/merge-with-solar/10150124721598583","The version 0.22 of solaR includes a new method, mergesolaR. It is designed to merge daily time series of several solaR objects...","Lisa Schweitzer This is really interesting. I am wondering if I could do the same thing with highway performance monitors....Tuesday, March 29, 2011 at 11:32pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "272",273,"Tuesday, March 29, 2011 at 12:46am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/using-r-and-snow-on-ohio-supercomputer-centers-glenn-cluster/10150124015223583","Over the last several days, I have had the “pleasure” of getting parallel processing with R running on the the Ohio Supercomputer Center’s (OSC) Glenn cluster. I am working on a project that uses GenMatch from Sekhon’s Matching, which uses the snow library to manage parallel processing. Gettin...","",NA,NA,NA,NA,NA,NA,NA "273",274,"Tuesday, March 29, 2011 at 12:46am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/day-12-5-ways-to-visualize-plots-in-knime/10150124015228583","Today I’m checking which plot function works fastest, I did this via this blogpost. http://www.r-bloggers.com/five-ways-to-visualize-your-pairwise-comparisons/ But I’m not doing this in an Rgui, but in Knime. I ...","",NA,NA,NA,NA,NA,NA,NA "274",275,"Tuesday, March 29, 2011 at 12:46am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/time-series/10150124015213583","‎(This post got published on The Statistics Forum yesterday.)The short book review section of the International Statistical Review sent me Raquel Prado’s and Mike West’s book, Time Series (Modeling, Computation, and Inference) to review. Th...","",NA,NA,NA,NA,NA,NA,NA "275",276,"Monday, March 28, 2011 at 2:56am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-guis-which-one-fits-you/10150123292508583","The gap of the new “digital divide” between those who only use computers when they are as easy to use as iPads and smartphones and those who like (or at least accept) to type commands to perform jobs, seems to get bigger and bigger.R – the lingua franca of statistical computing – is exactly such a ...","",NA,NA,NA,NA,NA,NA,NA "276",277,"Monday, March 28, 2011 at 2:56am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-re-exam/10150123292498583","In what seems like an endless cuRse, I found this week I had to re-grade a dozen R exams a TA’s did not grade properly! The grades I (X) got are plotted below against those of my TA (Y). ...","",NA,NA,NA,NA,NA,NA,NA "277",278,"Monday, March 28, 2011 at 2:56am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-bloggers-im-syndicated/10150123292493583","Today Left Censored became a contributor to R-Bloggers. If you’ve never heard of it, R-Bloggers is a blog aggregator that brings together R-related posts from a large number of blogs across the Internet. ...","",NA,NA,NA,NA,NA,NA,NA "278",279,"Sunday, March 27, 2011 at 5:28am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/an-r-package-or-a-r-package/10150122518573583","I’m currently writing some lecture notes on R and I used the phrase “a R package” without thinking. Since the word following the article “a” was a consonant, I automatically went for “a” instead of “an”. The problem is t...","",NA,NA,NA,NA,NA,NA,NA "279",280,"Sunday, March 27, 2011 at 5:28am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/how-to-backtest-a-strategy-in-r/10150122518593583","This is the third post in the Backtesting in Excel and R series and it will show how to backtest a simple strategy in R.  It will follow the 4 steps Damian outlined in his post on how to backtest a simple strategy in Excel....","",NA,NA,NA,NA,NA,NA,NA "280",281,"Sunday, March 27, 2011 at 5:28am","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/solar-022-is-at-cran/10150122518583583","The version 0.22 of solaR is now available at CRAN...","Frank Berninger Part of this could be interesting in production ecology also...Sunday, March 27, 2011 at 8:07am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "281",282,"Saturday, March 26, 2011 at 7:59am","2 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/aquamacs-22-and-ess/10150121850098583","News of the latest release of Aquamacs, version 2.2, appeared this week in my echo area. Given the opportunity to procrastinate, I dropped everything and upgraded; returning to work, I noticed that the version of ESS shipped with Aquamacs 2.2 is ESS 5.8, released over a year ago...","Romain François Another great achievement from the dirk side of the force. Saturday, March 26, 2011 at 12:33pm · LikeUnlike · 1ReplyJohn Shonder I have to say that as pretty as RStudio is, I still prefer Aquamacs with ESS.Saturday, March 26, 2011 at 1:53pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "282",283,"Saturday, March 26, 2011 at 7:59am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-inside-qt-a-simple-rinside-application/10150121850103583","The RInside package makes it pretty simple and straightforward to embed R, the wonderful statistical programming environment and language, inside of a C++ application. This uses both the robust embedding API provided by R itself, and the higher-level abstractions from our Rcpp package...","",NA,NA,NA,NA,NA,NA,NA "283",284,"Saturday, March 26, 2011 at 7:59am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/because-its-friday-do-celebrities-follow-the-half-your-age-plus-seven-rule/10150121850108583","Remember the Dating Equation from a while back, that formula that determines the socially acceptable bounds for the age of a female companion given the age of the male partner...","",NA,NA,NA,NA,NA,NA,NA "284",285,"Friday, March 25, 2011 at 10:33am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/dag-2/10150121162023583","Vandaag heb ik verder gewerkt aan de User Interface voor R. Dit wordt gedaan doormiddel van RGG. Dit is een “extensie” voor de R-code. Voor meer uitleg kan je best eens gaan kijken op http://rgg.r-forge.r-project.org/ Om deze RGG te gebruiken moet je eerst zorgen dat R op je pc geinstalleerd is. Oo...","",NA,NA,NA,NA,NA,NA,NA "285",286,"Friday, March 25, 2011 at 10:33am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/dag-4-s-middags/10150121162028583","Vandaag is een belangrijke dag. Alleszins voor mij toch. Ik ga vandaag en donderdag een cursus R volgen. Wat kan R, wie gebruikt het, hoe werkt het, … en meer van deze vragen worden voor mij opgelost. De voormiddag was dus redelijk rustig. ...","",NA,NA,NA,NA,NA,NA,NA "286",287,"Friday, March 25, 2011 at 10:33am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/dag-1/10150121162018583","Vandaag mijn eerste stagedag achter de rug. Die begon al met wat miserie aangezien ik van de security nog niet door mocht omdat niemand in mijn gebouw de telefoon opnam om mijn aankomst te bevestigen. Na een kwartiertje mocht ik dan toch door...","",NA,NA,NA,NA,NA,NA,NA "287",288,"Thursday, March 24, 2011 at 12:45pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-popularity-of-data-analysis-software-r-vs-sas-vs-spss-etc/10150120419228583","Robert Muenchen, the author of R for SAS and SPSS Users (A great book I’m proud to have on my shelf), has published this week an article in which he compares the popularity/market-share of many of the common statistical packages including R, SAS, SPSS and many others.The full article is available o...","",NA,NA,NA,NA,NA,NA,NA "288",289,"Thursday, March 24, 2011 at 12:45pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/basic-ggplot2-network-graphs-ver2/10150120419223583","I posted last week a simple function to plot networks using ggplot2 package. Here is version 2...","",NA,NA,NA,NA,NA,NA,NA "289",290,"Thursday, March 24, 2011 at 12:45pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-many-uses-of-q-q-plots/10150120419203583","My last four posts have dealt with boxplots and some useful variations on that theme.  Just after I finished the series, Tal Galili, who maintains the R-bloggers website, pointed me to a variant I hadn’t seen before.  It's called a beeswarm plot, and it's produced by the beeswarm package in R.  ...","",NA,NA,NA,NA,NA,NA,NA "290",291,"Wednesday, March 23, 2011 at 2:58pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/getting-into-shape-for-the-sport-of-data-science-screencast-of-talk-by-jeremy-ho/10150119628058583","Jeremy Howard gave a talk at the Melbourne R User Group on 16th March 2011.Jeremy provided tips on how to successfully compete in data mining competitions. He showed how he combines R with other tools to build predictive models...","",NA,NA,NA,NA,NA,NA,NA "291",293,"Wednesday, March 23, 2011 at 2:58pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/sab-r-metrics-sidetrack-bubble-plots/10150119628073583","While I had mentioned in my last post that I will cover logistic regression in my next post, I decided that a quick interlude in working with bubble plots would be fun...","",NA,NA,NA,NA,NA,NA,NA "292",294,"Wednesday, March 23, 2011 at 2:58pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/applied-r-manual-for-the-quantitative-social-scientist/10150119628063583","Applied R for the quantitative social scientist is a manual on R written specifically as an introduction for the quantitative social scientist. To my opinion, R-Project is a magnificent statistical program, ready to be accepted and implemented in the social sciences...","",NA,NA,NA,NA,NA,NA,NA "293",295,"Tuesday, March 22, 2011 at 5:18pm","6 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/using-r-for-introductory-statistics-6-simulations/10150118926858583","R can easily generate random samples from a whole library of probability distributions. We might want to do this to gain insight into the distribution's shape and properties...","",NA,NA,NA,NA,NA,NA,NA "294",296,"Tuesday, March 22, 2011 at 5:18pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/updated-infochimps-r-package-includes-several-new-apis/10150118926888583","Recently, the good folks at Infochimps.com rolled out a series of new APIs to add to their already impressive set of data resources.I have been in a perpetual state of catch-up since the new year, so I have only now got around to adding some of these new APIs to the infochimps R package...","",NA,NA,NA,NA,NA,NA,NA "295",297,"Tuesday, March 22, 2011 at 5:18pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rstudio-keyboard-shortcut-reference-pdf/10150118926893583","I recently started using RStudio, the amazing new IDE for R. You can view all of RStudio's keyboard shortcuts by going to the help menu, but I made this printable reference for myself and thought I'd share it...","",NA,NA,NA,NA,NA,NA,NA "296",298,"Monday, March 21, 2011 at 5:17pm","12 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-housing-bubble-by-city/10150118107843583","DIFFERENT CITIES TELL DIFFERENT STORIES Inspired by a tutorial called 5 Minute Analysis in R: Case-Shiller Indices, we decided to redo the analysis with 1) More up to date data and 2) Hadley Wickham’s super ggplot2 graphics package.The above plot shows the general trend in home prices, relative t...","Francisco Javier Wicked.Monday, March 21, 2011 at 5:22pm · LikeUnlike · 1ReplyCarlo Drago Very interesting.Tuesday, March 22, 2011 at 8:06am · LikeUnlikeReplyJohn Morrison brilliant!Tuesday, March 22, 2011 at 12:19pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "297",299,"Monday, March 21, 2011 at 5:17pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/fastish-extraction-of-exon-locations-from-a-bed12-file-using-datatable/10150118107828583","Here is a fast R function to extract exon locations from a BED12 file...","",NA,NA,NA,NA,NA,NA,NA "298",300,"Saturday, March 19, 2011 at 4:52pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/new-genabel-website-and-more-abel-software/10150116444368583","The *ABEL suite of R packages and software for genetic analysis has grown substantially since the appearance of GenABEL and the previously mentioned ProbABEL R packages...","",NA,NA,NA,NA,NA,NA,NA "299",301,"Saturday, March 19, 2011 at 4:52pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/flying-off-the-rack-r-and-the-web-in-2011/10150116444378583","If there is ever a time to learn R and web application development, it is now...in the age of Big Data. The upcoming release of R 2.13 will provide basic functionality for developing R web applications on the desktop via the internal HTTP server, but the interface is incompatible with rApache...","",NA,NA,NA,NA,NA,NA,NA "300",302,"Saturday, March 19, 2011 at 4:52pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/how-to-display-scatter-plot-matrices-with-r-and-lattice/10150116444373583","In lattice, there is a function called splom for the display of scatter plot matrices...","",NA,NA,NA,NA,NA,NA,NA "301",303,"Friday, March 18, 2011 at 5:50pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/more-please/10150115752453583","Thanks to Jim, I’ve been using R in the shell more and more – in concert with vi. I...","",NA,NA,NA,NA,NA,NA,NA "302",304,"Friday, March 18, 2011 at 5:50pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/staying-up-to-date-on-r-packages/10150115752458583","Unless you regularly use particular R packages, it’s becomes difficult to stay on top of updates and bug fixes. Updates usually also include significant improvements in performance. I wrote this short snippet of code which I run about once a month to keep up on updates. ...","",NA,NA,NA,NA,NA,NA,NA "303",305,"Friday, March 18, 2011 at 5:50pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/updated-tty-connection-for-r/10150115752468583","Below are some links to a patch against the R-2.12.2 source code that implements a tty connection for R...","",NA,NA,NA,NA,NA,NA,NA "304",306,"Thursday, March 17, 2011 at 8:09pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/how-the-new-york-times-uses-r-for-data-visualization/10150114946293583","The New York Times introduced R to the world with a feature article in 2009, and has been using R for many years to support its pioneering presentation data analysis and visualization, under the direction of graphics editor Amanda Cox.Last week, the New York R User Group's featured speaker was ...","",NA,NA,NA,NA,NA,NA,NA "305",307,"Thursday, March 17, 2011 at 8:09pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/updates-to-soilweb-mobile-distance-from-nearest-map-unit-boundary/10150114946298583","Working on some new ideas on how map unit data can be summarized on small screens-- particularly for our mobile version of SoilWeb. The distance from the nearest map unit polygon boundary is now printed above mini soil profile sketches...","",NA,NA,NA,NA,NA,NA,NA "306",308,"Thursday, March 17, 2011 at 8:09pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/having-a-problem-with-r-2122-64-bit-and-gam-package/10150114946283583","While working with some pitch location data recently, I ran across something strange when using my new computer (with R-2.12.2 64-bit) versus my work computer (with R-2.11.1 x64)...","",NA,NA,NA,NA,NA,NA,NA "307",309,"Wednesday, March 16, 2011 at 10:36pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/nice-simple-notes-on-running-r-in-parallel-by-geyer/10150114272348583","Here, by Charles J. Geyer. This post was kindly contributed by Gregor Gorjanc - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "308",310,"Wednesday, March 16, 2011 at 10:36pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/sab-r-metrics-brief-sidetrack-for-scatterplot-matrices/10150114272343583","In my last two posts I talked about Ordinary Least Squares, then extended this discussion to the multiple predictor case and briefly talked about some of the problems that may arise. These problems can include omitted variable bias, heteroskedasticity, non-normality, and multicollinearity...","",NA,NA,NA,NA,NA,NA,NA "309",311,"Wednesday, March 16, 2011 at 10:36pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/textural-triangle-plot-in-r/10150114272333583","Hi,these days I'm working with soil textural data and one of the key point of these data is the presentation of the results.The best way is a old-school texture triangle!!!Because I like to do all my stuff in R, instead of opening draw software such as corel draw or adobe illustrator, I started...","",NA,NA,NA,NA,NA,NA,NA "310",312,"Wednesday, March 16, 2011 at 12:24am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rstudio-my-thoughts/10150113552328583","Let me get this out of the way: I just love RStudio.Created by a team lead by JJ Allaire, a name that should ring a bell if you were involved in web development during the Clinton administration, RStudio is an R IDE that is actually designed for R from the ground up...","",NA,NA,NA,NA,NA,NA,NA "311",313,"Wednesday, March 16, 2011 at 12:24am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/uah-temperature-anomalies-following-predictable-pattern/10150113552353583","In this post I show one simple and 2 multiple regression models to assess the role of time, El Nino – La Nina SSTA and volcanic activity (SATO) on UAH global temperature anomaly trends. ...","",NA,NA,NA,NA,NA,NA,NA "312",314,"Wednesday, March 16, 2011 at 12:24am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/example-830-compare-poisson-and-negative-binomial-count-models/10150113552333583","How similar can a negative binomial distribution get to a Poisson distribution?When confronted with modeling count data, our first instinct is to use Poisson regression. But in practice, count data is often overdispersed...","",NA,NA,NA,NA,NA,NA,NA "313",315,"Tuesday, March 15, 2011 at 2:23am","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/statistical-tests-for-variable-selection/10150112709583583","I received an email today with the following comment:I’m using ARIMA with Intervention detection and was planning to use your package to identify my initial ARIMA model for later iteration, however I found that sometimes the auto.arima function returns a model where AR/MA coefficients are not s...","David Urquhart Estimating Pi using random plots inside square and circular areas is what I do in a new language (ie Turbo Pascal, C, Visual Basic, C++ etc) after Hello World. Most fun was MIT's Scratch. I better try it in R!Tuesday, March 15, 2011 at 4:14am · LikeUnlikeReplyDavid Urquhart http://scratch.mit.edu/projects/davidurquhart/1562Tuesday, March 15, 2011 at 5:02am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "314",316,"Tuesday, March 15, 2011 at 2:23am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/happy-pi-day-now-go-estimate-it/10150112709593583","As you may know, today is Pi Day, when all good nerds take a moment to thank the geeks of antiquity for their painstaking work in estimating this marvelous mathematical constant.It is also a great opportunity to thank contemporary geeks for the wonders of modern computing, which allow us to...","",NA,NA,NA,NA,NA,NA,NA "315",317,"Tuesday, March 15, 2011 at 2:23am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/amanda-cox-on-how-the-new-york-times-graphics-department-uses-r/10150112709598583","Last month, Amanda Cox from The New York Times Graphic Department gave a great talk to the NYC R Statistical Programming Meetup. I’ve just got around to uploading the video, which has been broken into a part one and part two. ...","",NA,NA,NA,NA,NA,NA,NA "316",318,"Sunday, March 13, 2011 at 6:59am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-quick-look-at-march11-saudi-tweets/10150111148398583","Well, so much for that #march11 #Saudi day of rage...","",NA,NA,NA,NA,NA,NA,NA "317",319,"Sunday, March 13, 2011 at 6:59am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/ask-r-not-to-create-a-local-directory-tree/10150111148408583","I don't like R to create a local directory tree in my home directory because new packages will automatically be installed into that directory...","",NA,NA,NA,NA,NA,NA,NA "318",320,"Sunday, March 13, 2011 at 6:59am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/legendary-plots/10150111148388583","I was recently pointed in the direction of a thermal comfort model by the engineering company Arup (p27–28 of this pdf). Figure 3 at the top of p28 caught my attention.It’s mostly a nice graph; there’s not too much junk in it. One...","",NA,NA,NA,NA,NA,NA,NA "319",321,"Saturday, March 12, 2011 at 8:34am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/script-for-geostatistics-with-r/10150110425628583","I received requests for the script used during the tutorial.All the material is available in the main page of the course.However, in order to facilitate the availability of the scripts to all the viewers of this blog I've put the link to donwnload them at the end of this post.This zip file contains...","",NA,NA,NA,NA,NA,NA,NA "320",322,"Saturday, March 12, 2011 at 8:34am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/survey-r-used-by-more-data-miners-than-any-other-tool/10150110425618583","According to respondents of the 2010 Rexer Analytics Data Miner Survey, open source R is the most commonly-used analysis tool amongst data miners:After a steady rise across the past few years, the open source data mining software R overtook other tools to become the tool used by more data miners (...","",NA,NA,NA,NA,NA,NA,NA "321",323,"Saturday, March 12, 2011 at 8:34am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpparmadillo-0216/10150110425613583","Conrad Sanderson continues an active release schedule for his wonderful Armadillo templated C++ library for linear algebra; release 1.1.8 just came out yesterday. So I made a new release 0.2.16 of RcppArmadillo, our Rcpp-based integration into R. No changes on our side...","",NA,NA,NA,NA,NA,NA,NA "322",324,"Friday, March 11, 2011 at 10:46am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/analyzing-big-data-with-revolution-r-enterprise/10150109689673583","This post from Sherry LaMonica is the first in a series from members of the Revolution Analytics Engineering team — ed.Do you know about the big data capabilities in the RevoScaleR package, included with every Revolution R Enterprise installation?RevoScaleR provides a framework for fast and ef...","",NA,NA,NA,NA,NA,NA,NA "323",325,"Friday, March 11, 2011 at 10:46am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/comparing-two-dimensional-data-sets-in-r-take-ii/10150109689688583","David commented on yesterday's post and suggested to put the continuous fitted distribution in the background and the discrete, empirical distribution in the foreground...","",NA,NA,NA,NA,NA,NA,NA "324",326,"Friday, March 11, 2011 at 10:46am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/comparison-of-giss-lotas-during-5-el-nino-la-nina-cycles/10150109689683583","In this post I compare GISS LOTAs during 5 El Nino – La Nina cycles (2010, 1998, 19883, 1973 and 1970). ...","",NA,NA,NA,NA,NA,NA,NA "325",327,"Thursday, March 10, 2011 at 12:58pm","6 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/beeswarm-boxplot-and-plotting-it-with-r/10150108942558583"," (The image above is called a “Beeswarm Boxplot” , the code for producing this image is provided at the end of this post)The above plot is implemented under different names in different softwares. T...","",NA,NA,NA,NA,NA,NA,NA "326",328,"Thursday, March 10, 2011 at 12:58pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/howling-winds-and-stochastic-tones/10150108942573583","My greatest pleasures in mathematics come from observing–and here, listening to–the interplay of simple and complex. With a few axioms and definitions you can create surprising worlds, and in what seems like a mess you can find beautiful regularities. It’s damn sexy, frankly. Here...","",NA,NA,NA,NA,NA,NA,NA "327",329,"Thursday, March 10, 2011 at 12:58pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-r-files-call-for-nominations/10150108942588583","We run an occasional series here on Revolutions called The R-Files, in which we profile members of the R community...","",NA,NA,NA,NA,NA,NA,NA "328",330,"Wednesday, March 9, 2011 at 2:55pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/challenge-visualizing-the-us-federal-budget/10150108194948583","Google today announced a Data Visualization Challenge that is well suited to the graphical capabilities of R. The goal is to visualize the US Federal budget from the point of view of the taxes an individual pays...","",NA,NA,NA,NA,NA,NA,NA "329",331,"Wednesday, March 9, 2011 at 2:55pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/splitting-a-dataset-revisited-keeping-covariates-balanced-between-splits/10150108194953583","In my previous post I showed you how to randomly split up a dataset into training and testing datasets. (Thanks to all those who emailed me or left comments letting me know that this could be done using other means...","",NA,NA,NA,NA,NA,NA,NA "330",332,"Wednesday, March 9, 2011 at 2:55pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/can-one-beat-a-random-walk-impossible-you-say/10150108194938583","Firstly, apologies for the long absence as I've been busy with a few things.  Secondly, apologies for the horrific use of caps in the title (for the grammar monitors).  Certainly, you'll gain something useful from today's musing, as it's a pretty profound insight for most (was for me at the time). ...","",NA,NA,NA,NA,NA,NA,NA "331",333,"Tuesday, March 8, 2011 at 5:16pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/alabama-is-a-foreign-country/10150107445953583","Faculty and students of Iowa State University Department of Statistics published online an analysis of the data on 2009 distributions of the US Stimulus funds, aka the Recovery And Reinvestment Act....","",NA,NA,NA,NA,NA,NA,NA "332",334,"Tuesday, March 8, 2011 at 5:16pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/initial-soilweb-concept-on-paper/10150107445938583","read more This post was kindly contributed by dylan's blog - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "333",335,"Tuesday, March 8, 2011 at 5:16pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/an-enhanced-kaplan-meier-plot/10150107445923583","We often see, in publications, a Kaplan-Meier survival plot, with a table of the number of subjects at risk at different time points aligned below the figure. I needed this type of plot (or really, matrices of such plots) for an upcoming publication...","",NA,NA,NA,NA,NA,NA,NA "334",336,"Monday, March 7, 2011 at 7:32pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/factor-models-of-variance-in-finance/10150106784733583","In “What the hell is a variance matrix?” I talked about the basics of variance matrices and highlighted challenges for estimating them in finance. H...","",NA,NA,NA,NA,NA,NA,NA "335",337,"Monday, March 7, 2011 at 7:32pm","14 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-million-random-digits-review-of-reviews/10150106784753583","Recently on his blog (here), Robin mentioned an amazing book, called ""A Million Random Digits"" published by RAND corporation...","Jim Browne LOL! I've already read that book ;)Monday, March 7, 2011 at 8:53pm · LikeUnlikeReplyMarco Breitig ROFL!Wednesday, March 9, 2011 at 7:23am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "336",338,"Sunday, March 6, 2011 at 9:33pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/moving-from-excel-to-r/10150106127753583","This first post of the Backtesting in Excel and R series will provide some resources to help smooth the transition from the familiarity and comfort of Excel to the potentially strange and intimidating world of R...","",NA,NA,NA,NA,NA,NA,NA "337",339,"Sunday, March 6, 2011 at 9:33pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/choropleths-made-easy/10150106127758583"," Choropleth Maps are very useful to visualize spatial trends. There have been several blog posts providing detailed instructions on how to create a choropleth map in R using map, spplot and ggplot2. ...","",NA,NA,NA,NA,NA,NA,NA "338",340,"Sunday, March 6, 2011 at 9:33pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-package-automated-download/10150106127738583","There are situations where we might want to run R on a standalone machine so need to download a (potentially) large number of packages to install on this system...","",NA,NA,NA,NA,NA,NA,NA "339",341,"Sunday, March 6, 2011 at 12:10am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpparmadillo-0214-and-0215/10150105488503583","A few days ago Conrad Sanderson released version 1.1.6 of his Armadillo templated C++ library for linear algebra. Accordingly, I made a new release 0.2.14 of RcppArmadillo, our Rcpp-based integration into R which included a few local fixes...","",NA,NA,NA,NA,NA,NA,NA "340",342,"Sunday, March 6, 2011 at 12:10am","7 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/parallel-processing-in-r-for-windows/10150105488498583","The doSMP package (and its companion package, revoIPC), previously bundled only with Revolution R, is now available on CRAN for use with open-source R under the GPL2 license.In short, doSMP makes it easy to do SMP parallel processing on a Windows box with multiple processors....","",NA,NA,NA,NA,NA,NA,NA "341",343,"Sunday, March 6, 2011 at 12:10am","12 people like this","View all 5 comments","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/five-ways-to-visualize-your-pairwise-comparisons/10150105488493583","In data analysis it is often nice to look at all pairwise combinations of continuous variables in scatterplots...","Steena Monteiro This is useful. I've always used pairs!Sunday, March 6, 2011 at 6:50pm · LikeUnlikeReplyPrzemek Jura that is very nice exampleMonday, March 7, 2011 at 1:42am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "342",344,"Saturday, March 5, 2011 at 5:15am","0","At least 1 comment","0","Mark Jones Jr.","How is it that I never knew this page existed?! Any aerospace industry useRs out there?",NA,NA,"R bloggers ‎:)Saturday, March 5, 2011 at 6:44am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "343",345,"Saturday, March 5, 2011 at 2:44am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/video-introduction-to-r-packages-by-rory-winston-melbourne-r-users-february-2011/10150104902253583","On February 17th 2011 Rory Winston gave a talk on creating R packages at the Melbourne R Users Group (see Meetup page).Slides from the talk can be downloaded here.For more information about Rory check out his blog The Research KitchenThe Video can be viewed directly here.Many thanks toPedro Olaya...","",NA,NA,NA,NA,NA,NA,NA "344",346,"Saturday, March 5, 2011 at 2:44am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/yet-another-r-report-generator-and-more/10150104902248583","I recently uploaded some code to R-forge related to an R package I’ve been working on, titled yarr. The work was motivated by a desire to embed R code and output within my HTML blog posts! ...","",NA,NA,NA,NA,NA,NA,NA "345",347,"Saturday, March 5, 2011 at 2:44am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/death-spiral-warning-graph/10150104902243583","In the death spiral scenario, rates go up while the currency goes down.  Here is the way to watch that.  I’m not saying that death spiral of US Dollar and interest rates occurs, but without significant action to restore confidence in fiscal and monetary policies, it is almost certain.  Fort...","",NA,NA,NA,NA,NA,NA,NA "346",348,"Friday, March 4, 2011 at 5:08am","30 people like this","View all 9 comments","0","Steena Monteiro","Saw this on Flowing Data's twitter feed (@flowingdata) last night: http://rstudio.org/","http://rstudio.org/","RStudio brings together everything you need to be productive with R in a single, customizable environment. Its intuitive interface and powerful coding tools help you get work done faster.","Antuj Srivastav one hell of a gui .. finally i found 1 which works for me . StatEt nd eclipse scked fr me :-(Wednesday, March 9, 2011 at 7:58pm · LikeUnlikeReplyRoland Kofler still not as potential as StatET with autocompletion and method navigation or Versioning.Friday, March 25, 2011 at 9:42am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "347",349,"Friday, March 4, 2011 at 4:48am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/3d-anisotropy-parameters/10150104296578583","Hello everyone,I’m trying to create a method for calculating the 5 parameters for the 3D anisotropy in an automatic way.Basically I created a loop for analysing the range of the horizontal variogram in every direction and extrapolating the maximum (for the angle p). ...","",NA,NA,NA,NA,NA,NA,NA "348",350,"Friday, March 4, 2011 at 4:48am","5 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/creating-r-packages/10150104296573583","Rory Winston provides a detailed introduction to creating R packages. He provides a simple of, from start to finish, as well as how to incorporate native code into your package. This post was kindly contributed by VCASMO - drewconway - go there to comment and to read the full post. ","Sergio Ibarra Espinosa Thank you so muchFriday, March 4, 2011 at 5:50pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "349",351,"Friday, March 4, 2011 at 4:48am","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/keep-an-eye-on-the-emerging-open-source-analytics-stack/10150104296563583","This post is contributed by Revolution Analytics CEO Norman Nie, and cross-posted from the Future of Open Source Forum.A lot of attention has been focused recently on Big Data, and rightly so: Big Data is a Big Deal...","Marco Paolo Valerio Vezzoli Open source leverage your ability to solve problems instead of creating other ones. In the last 14 years I've spent so much time on proprietary tools trying to figure out how to overcome problems and begging for support; my most successful projects were based on R, Postgres, Python and other OS tools: until now the only limit I had with them was the hardware.Friday, March 4, 2011 at 7:21am · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "350",352,"Thursday, March 3, 2011 at 6:39am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/cutpaste-typo-in-r-book/10150103625243583","A casualty of cut-and-paste in Chapter 3 of Introducing Monte Carlo Methods with R. Brad McNeney from Simon Fraser sent me a nice email about the end of Example 3.6 missing a marginal estimate. Indeed, it does...","",NA,NA,NA,NA,NA,NA,NA "351",353,"Thursday, March 3, 2011 at 6:39am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpp-at-geneva-r/10150103625253583","I'll present Rcpp at the inaugural Geneva-R meeting.Geneva-R is an informal gathering of R enthusiasts sponsored by Mango Solutions, that builds on the success of London-R, where I presented twice, and Basel-R This post was kindly contributed by Romain Francois, Professional R Enthusiast - go...","",NA,NA,NA,NA,NA,NA,NA "352",354,"Thursday, March 3, 2011 at 6:39am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/calling-r-from-jasperreports-server/10150103625248583","Revolution Analytics today announced a partnership with Jaspersoft, the makers of the most widely-used business intelligence software in the world...","",NA,NA,NA,NA,NA,NA,NA "353",355,"Wednesday, March 2, 2011 at 8:58am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/why-learn-r/10150102997363583","I'm introducing R to a few colleagues this week and want to share why learning a software like R is important... Here are a few articles that explain it well.....","",NA,NA,NA,NA,NA,NA,NA "354",356,"Wednesday, March 2, 2011 at 8:58am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/extracting-sea-surface-temperatures-from-noaas-oisstv2/10150102997383583","NOAA’s Physical Sciences Division produces a global map of weekly averaged sea surface temperatures, derived from satellite sources. The data can be found at http://www.esrl.noaa.gov/psd/data/gridded/data.noaa.oisst.v2.html. ...","",NA,NA,NA,NA,NA,NA,NA "355",357,"Tuesday, March 1, 2011 at 11:11am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/new-open-source-ide-for-r-in-beta-test/10150102344383583","Rstudio, a new open-source IDE for R, has just been announced and is now available for beta test on Windows, MacOS, and Ubuntu. It works with an existing installation of R (2.11.1 or above) on your desktop, and is also available as a server version for Linux, where the IDE runs in your browser...","",NA,NA,NA,NA,NA,NA,NA "356",358,"Tuesday, March 1, 2011 at 11:11am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-rstudio-ide-first-impressions-are-positive/10150102344378583","Integrated development environments (IDEs) are software development tools, providing an interface that enables you to write, debug, run and view the output of your code.Whether you need an IDE or find them useful depends very much on your own preferences and style of working...","",NA,NA,NA,NA,NA,NA,NA "357",359,"Tuesday, March 1, 2011 at 11:11am","8 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rstudio-just-what-ive-been-looking-for/10150102344373583","For many years I used RWinEdt as my text editor for R code, but when WinEdt 6.0 came out, RWinEdt stopped working. So I’ve been looking for something to replace it. ...","",NA,NA,NA,NA,NA,NA,NA "358",360,"Monday, February 28, 2011 at 1:52pm","4 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/what-480m-of-gross-revenue-looks-like-to-groupon/10150101671413583","On Saturday, the Wall St...","Steffen Krutzinna that's just messyMonday, February 28, 2011 at 10:41pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "359",361,"Monday, February 28, 2011 at 1:52pm","5 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/visualizing-soccer-league-standings/10150101671418583","I feel ashamed for this boring title, but hope that the entry can make up for it. This visualization did inspire me, as a comment did point to my Tour de France visualizations.As with all visualizations, we need data first – this sounds trivial, but is something a frustrating show-stopper. ...","",NA,NA,NA,NA,NA,NA,NA "360",362,"Sunday, February 27, 2011 at 4:41pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/john-chambers-the-inventor-of-s-added-reference-classes-to-r/10150101023408583","John Chambers, the inventor of S, added reference classes to R 2.12, and oh boy are they fun to look at! What you see in the picture above is a “Hello World” web application for R. It’s written using the Rack R package (not unlike Ruby’s Rack). If you...","",NA,NA,NA,NA,NA,NA,NA "361",363,"Saturday, February 26, 2011 at 7:48pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/more-chicago-mayoral-analaysis/10150100432638583","IntroductionIn a previous post on the Chicago Mayoral primary I looked at plotting returns on maps as a way to better understand the outcome...","",NA,NA,NA,NA,NA,NA,NA "362",364,"Saturday, February 26, 2011 at 7:48pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-split-apply-combine-paradigm-in-r/10150100432643583","Last night at the DC R Users meetup, which was our largest meetup to date, I gave an introductory presentation on data munging, and spent a bit of time on the split-apply-combine paradigm that I use almost daily in my work. I talked mainly about the packages plyr and doBy, which I use a lot now...","",NA,NA,NA,NA,NA,NA,NA "363",365,"Saturday, February 26, 2011 at 7:48pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/ggplot2-joy/10150100432648583","I’ve been working on a long-term (25+yr) longitudinal study of rheumatoid arthritis with my boss. He just walked in and asked if I could create a plot showing the trajectory of pain scores over time for each subject, separated by educational level (4 groups). ...","",NA,NA,NA,NA,NA,NA,NA "364",366,"Friday, February 25, 2011 at 10:27pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/example-827-using-regular-expressions-to-read-data-with-variable-number-of-words/10150099855833583","A more or less anonymous reader commented on our last post, where we were reading data from a file with a varying number of fields...","",NA,NA,NA,NA,NA,NA,NA "365",367,"Friday, February 25, 2011 at 10:27pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/packages-for-by-group-processing-in-r/10150099855838583","Analyst and BI expert Steve Miller takes a look at the facilities in R for doing ""by-group"" processing of data. The task consisted of:.....","",NA,NA,NA,NA,NA,NA,NA "366",368,"Friday, February 25, 2011 at 10:27pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/mapping-the-2011-chicago-mayoral-democratic-primary/10150099855823583","IntroductionChicago held a Democratic primary on Feb 22nd, and I wanted to visualize the results of the 6-way Mayoral race. I’m a huge fan of mapping election results with R, but I was never able to get my favorite graphing library ggplot2 working correctly with shapefiles. ...","",NA,NA,NA,NA,NA,NA,NA "367",369,"Friday, February 25, 2011 at 1:20am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/typen-graphs-in-r/10150099226958583","Click here to download: type n graph.R (2 KB) One of the most useful graphs you can produce in R using the plot(...) function is one with nothing in it...","",NA,NA,NA,NA,NA,NA,NA "368",370,"Friday, February 25, 2011 at 1:20am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/book-review-25-recipes-for-getting-started-with-r/10150099226953583","Recently I was asked by O’Reilly publishing to give a book review for Paul Teetor new introductory book to R. After giving the book some attention and appreciating it’s delivery of the material, I was happy to write and post this review. A...","",NA,NA,NA,NA,NA,NA,NA "369",371,"Friday, February 25, 2011 at 1:20am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/phenotypic-selection-analysis-in-r/10150099226938583","I have up to recently always done my phenotypic selection analyses in SAS. I finally got some code I think works to do everything SAS would do...","",NA,NA,NA,NA,NA,NA,NA "370",372,"Thursday, February 24, 2011 at 3:58am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/whats-the-best-platform-for-a-high-score-on-canabalt/10150098628518583","The Web-based Flash game Canabalt, whose scores have been analyzed by R before, is now available as an iOS App...","",NA,NA,NA,NA,NA,NA,NA "371",373,"Thursday, February 24, 2011 at 3:58am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/hrsa-area-resource-file-format-2009/10150098628533583","From the HRSA website: [The ARF 2009] is a database containing more than 6,000 variables for each of the nation’s counties. ...","",NA,NA,NA,NA,NA,NA,NA "372",374,"Thursday, February 24, 2011 at 3:58am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/discussions-on-the-future-of-r/10150098628523583","Inspired by the discussions on the same topic, Avram Aelony presented an overview of the issues and the Los Angeles R users group proceeded with further discussions. This post was kindly contributed by R User Groups - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "373",375,"Wednesday, February 23, 2011 at 6:11am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/course-machine-learning-with-r/10150097980903583","Starting on March 5 at the Hacker Dojo in Mountain View (CA), Mike Bowles and Patricia Hoffmann will present a course on Machine Learning where R will be the ""lingua franca"" for looking at homework problems, discussing them and comparing different solution approaches. The class will begin at the l...","",NA,NA,NA,NA,NA,NA,NA "374",376,"Wednesday, February 23, 2011 at 6:11am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/stochastic-approximation-in-mixtures/10150097980908583","On Friday, a 2008 paper on Stochastic Approximation and Newton’s Estimate of a Mixing Distribution by Ryan Martin and J.K. Ghosh was posted on arXiv. ...","",NA,NA,NA,NA,NA,NA,NA "375",377,"Wednesday, February 23, 2011 at 6:11am","2 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/get-all-your-questions-answered/10150097980913583","When I have a question I usually ask the internet before bugging my neighbor...","Matt Cooper Was going to comment on the full post but realised that wasn't specific to R. http://stackoverflow.com/questions/tagged/r Is pretty good and deserves a mention with these others.Wednesday, February 23, 2011 at 6:30am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "376",378,"Tuesday, February 22, 2011 at 8:29am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/use-r-to-view-and-manipulate-the-file-system/10150097306078583","One of the best ways to learn how to code in R is to view sample scripts that people share.I recently came across this post where Michael uses R to scrape twitter and collect all sorts of great data on the current unrest in the Middle East and northern Africa...","",NA,NA,NA,NA,NA,NA,NA "377",379,"Tuesday, February 22, 2011 at 8:29am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/dataset-wisconsin-union-protester-tweets-wiunion/10150097306083583","   I’ve been playing with Twitter data over the last week, archiving Algerian, Egyptian, Iranian, and Chinese tweets.  I thought I’d bring the story a little closer to home this time by archiving tweets from Wisconsin Union protesters on the #wiunion tag.  Grab...","",NA,NA,NA,NA,NA,NA,NA "378",380,"Tuesday, February 22, 2011 at 8:29am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/thor-vs-uncanny-x-men-vs-fantastic-four/10150097306073583","Three of Marvel’s longest running comic book series’ are Thor, Uncanny X-Men, and Fantastic Four. Using data from 2010, I compare monthly comic book sales for each series. This data only pertains to monthly issues and not trade paperbacks. Fu...","",NA,NA,NA,NA,NA,NA,NA "379",381,"Monday, February 21, 2011 at 10:41am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/software-tools-for-data-analysis-an-overview/10150096589058583","by Szilard PafkaDiscussions on various software tools (C, C++, Perl, Python, Unix shell, R, Matlab, SAS, SPSS, Excel, databases, Hadoop etc.) used in data analysis...","",NA,NA,NA,NA,NA,NA,NA "380",382,"Monday, February 21, 2011 at 10:41am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/user-2011-in-warwick/10150096589053583","This year useR! conference will take place in Warwick, on August 16-18. It is being organised by the department of Statistics and funded by CRiSM and Revolution Analytics (providers of the R tee-shirt!)...","",NA,NA,NA,NA,NA,NA,NA "381",383,"Monday, February 21, 2011 at 10:41am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/new-r-features-in-bio7-15/10150096589048583","Bio7 1.5 has been released and comes with new functionalities for R.For all who don’t know Bio7 here is a short description:Bio7 is a integrated development environment for ecological modelling based on the Rich-Client-Platform concept of the Java IDE Eclipse. ...","",NA,NA,NA,NA,NA,NA,NA "382",384,"Sunday, February 20, 2011 at 1:15pm","8 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/working-with-multiple-graphs-in-r/10150095887958583","I'm trying out screencasting to help illustrate some tips and tricks with the statistics software package R, but also to hone my skills in this area.I'm including the code for this example as an attachment to this post.I'm in the process of preparing the next one, which will look at using the ...","",NA,NA,NA,NA,NA,NA,NA "383",385,"Friday, February 18, 2011 at 6:08pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-given-column-name-in-a-data-frame-get-the-index/10150094705428583","Had a mental block today trying to figure out how to get the indices of columns in a data frame given their names. Simple task but difficult to search Google for an answer. Thanks to jashapiro, Matt, and Vince for giving me a heads up on the which() function...","",NA,NA,NA,NA,NA,NA,NA "384",386,"Friday, February 18, 2011 at 6:08pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/student-travel-grants-for-user-2011/10150094705423583","For students planning to attend the annual worldwide R user conference, useR! 2011, travel grants are available to help defray the cost of attending the conference in the UK. CRISM is offering bursaries for accommodation and conference fees, and Revolution Analytics is offering $1,000 travel grants...","",NA,NA,NA,NA,NA,NA,NA "385",387,"Friday, February 18, 2011 at 6:08pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/consuming-rdotnet/10150094705418583","In my explorations with R, Mathematica, FreeMat, MatLab, and RapidMiner (now with R support! Yay!), I’m seeing integration of R to be quite useful in building a trading app, as technical analysis is one of R’s fortés. For...","",NA,NA,NA,NA,NA,NA,NA "386",388,"Thursday, February 17, 2011 at 8:31pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/top-15-daily-tweeters-of-25bahman-for-the-past-five-days/10150094102868583","My friend Michael Bommarito has been doing the data community quite a service, capturing and sharing all of the traffic on Twitter related to the Iranian protests...","",NA,NA,NA,NA,NA,NA,NA "387",389,"Thursday, February 17, 2011 at 3:53am","0","0","0","Rezzel Jean Mercado-Calino Pastrana","A twin prime is a pair of primes (x, y), such that y = x + 2. Construct a list of all twin primes below 1000. What is the R codes for these?",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "388",390,"Wednesday, February 16, 2011 at 10:57pm","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-egyptian-revolution-in-tweets/10150093496833583","Twitter played a significant role in the recent uprising in Egypt, with protesters communicating via tweets marked with the #25bahman hastag (February 14 in the arabic calendar) to plan and rally for the demonstration...","Sven Knudsen nice graph ...Thursday, February 17, 2011 at 5:17am · LikeUnlikeReplyJoachim Palm hey I dont like the y-axis. is this tweets/min?? And how did you recieve the data??Thursday, February 17, 2011 at 2:41pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "389",391,"Wednesday, February 16, 2011 at 10:57pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/mapping-londons-population-change-1801-2030/10150093496838583","Buried in the London Datastore are the population estimates for each of the London Boroughs between 2001 – 2030. They predict a declining population for most boroughs with the exception of a few to the east. ...","",NA,NA,NA,NA,NA,NA,NA "390",392,"Wednesday, February 16, 2011 at 10:57pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/take-the-ggplot2-user-survey/10150093496828583","The author of the ggplot2 graphics package for R, Hadley Wickham, is looking for feedback from ggplot2 users. If you've used ggplot2, fill out his short survey at the link below.WuFoo: ggplot2 survey This post was kindly contributed by Revolutions - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "391",393,"Wednesday, February 16, 2011 at 1:07am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/example-825-more-latent-class-models-plus-a-graphical-display/10150092889113583","In recent entries (here, here, here and here), we've been fitting a series of latent class models using SAS and R. One of the most commonly used and powerful package for latent class model estimation is Mplus...","",NA,NA,NA,NA,NA,NA,NA "392",394,"Wednesday, February 16, 2011 at 1:07am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/statistical-graphics-edward-tufte/10150092889103583","The work of Edward Tufte is worth reading if you are interested in designing meaningful graphs and removing chart junk from your displays. This post was kindly contributed by Software for Exploratory Data Analysis and Statistical Modelling - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "393",395,"Wednesday, February 16, 2011 at 1:07am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/abc-in-london/10150092889098583","After the very exciting and I think quite successful ABC in Paris meeting two years ago, Michael Stumpf from Imperial College London suggested a second edition in London along the same lines. Michael kindly associated me with the planning of this meeting...","",NA,NA,NA,NA,NA,NA,NA "394",396,"Tuesday, February 15, 2011 at 2:45am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/reaching-1000/10150092431503583","This is the 1000th post on the ‘Og! Here are the entries that have had above 1000 views (not viewers) so far:In{s}a(ne)!! ...","",NA,NA,NA,NA,NA,NA,NA "395",397,"Tuesday, February 15, 2011 at 2:45am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/okcupid-finding-your-valentine-with-r/10150092431513583","Free dating site OkCupid (which was recently acquired by match.com) collects a lot of data...","",NA,NA,NA,NA,NA,NA,NA "396",398,"Tuesday, February 15, 2011 at 2:45am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/stack-exchange-quantitative-finance-in-public-beta/10150092431508583","The Quantitative Finance Stack Exchange community entered public beta last week.  To quote the FAQ: The Quantitative Finance Stack Exchange is intended specifically for professionals and traders working in investment banking, and academics involved in teaching and research....","",NA,NA,NA,NA,NA,NA,NA "397",399,"Monday, February 14, 2011 at 5:44am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/wheres-your-high-end-sportswear-made/10150091958413583","Sierra Trading Post mailed me their End-of-Winter 2011 catalog, which consists mostly of mid- to high-end sportswear products, but also things like snow skis, flashlights, and binoculars. STP sells closeouts, overstock, seconds, and items with cosmetic blemishes or irregularities...","",NA,NA,NA,NA,NA,NA,NA "398",400,"Monday, February 14, 2011 at 5:44am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/visualize-nhl-play-by-play-using-tableau-public-and-r/10150091958418583","Nothing like a little Sunday morning data hacking before a big game! I have been wanting to play with the NHL play-by-play event files for some time now...","",NA,NA,NA,NA,NA,NA,NA "399",401,"Monday, February 14, 2011 at 5:44am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/sab-r-metrics-displaying-line-plots-and-time-series-data/10150091958423583","It's been a while since I've had the chance to add anything here, but last time I left everyone with some scatter plots and some customization tools for your graphics...","",NA,NA,NA,NA,NA,NA,NA "400",402,"Saturday, February 12, 2011 at 6:52pm","0","0","0","Sebnem Er","http://cran.r-project.org/web/packages/GA4Stratification/index.html","http://cran.r-project.org/web/packages/GA4Stratification/index.html","This is a Genetic Algorithm package for the determination of the stratum boundaries and sample sizes of each stratum in stratified sampling","",NA,NA,NA,NA,NA,NA,NA "401",403,"Saturday, February 12, 2011 at 11:37am","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/simulating-second-difference-using-zelig/10150091034443583","I am trying to simulate second difference using Zelig, here is my code:--------------------------------------------------------data(turnout)# estimationz.out <- zelig(vote ~ race*age + educate + income,               model = ""logit"", data = turnout)summary(z.out)# first differencex.low <- setx(z....","Pablo Caceres What it is ""second difference""?Saturday, February 12, 2011 at 12:46pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "402",404,"Saturday, February 12, 2011 at 11:37am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/where-should-you-publish-that-next-paper/10150091034448583","Like many academics, Arthur Charpentier thinks a lot about publishing papers in journals. Specifically, we wondered if there was a way to figure out which journal was the best place to publish his next paper and have it accepted: I was wondering if there were clusters of journals, i.e....","",NA,NA,NA,NA,NA,NA,NA "403",405,"Saturday, February 12, 2011 at 11:37am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/user-meetup-at-google-san-francisco/10150091034453583","Earlier this week, Google hosted the Bay Area useR Group at our San Francisco office. Over 40 attendees showed up to hear Dylan Beaudette from UC Davis give a presentation about investigating soil genesis and geography with R (PDF)...","",NA,NA,NA,NA,NA,NA,NA "404",406,"Friday, February 11, 2011 at 2:18pm","5 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-overtakes-sas-and-matlab-in-programming-language-popularity/10150090622848583","Tiobe Software ranks the popularity of programming languages based on references in search engines...","",NA,NA,NA,NA,NA,NA,NA "405",407,"Friday, February 11, 2011 at 2:18pm","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/stata-or-r/10150090622853583","Recently I came across a complex model written in Access with complex SQL queries all over the place...","Anish Sugathan someone on the SATA rolls !Saturday, February 12, 2011 at 7:59am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "406",408,"Friday, February 11, 2011 at 2:18pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/le-monde-puzzle-5/10150090622843583","Another Sudoku-like puzzle from the weekend edition of Le Monde. The object it starts with is a 9×9 table where each entry is an integer and where neighbours take adjacent values....","",NA,NA,NA,NA,NA,NA,NA "407",409,"Thursday, February 10, 2011 at 5:05pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/merci-taxi/10150090223548583","I am in Montpellier today for a general meeting of our EMILE ANR grant bi-yearly meeting, discussing ABC model choice and new applications of simulation methods in population genetics, including an upgrade of DIYABC into the 2.0 version...","",NA,NA,NA,NA,NA,NA,NA "408",410,"Thursday, February 10, 2011 at 5:05pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/new-r-user-groups-in-europe/10150090223543583","It's great to see the growth in R user groups around the world, and now there are three new ones in western Europe:In Amsterdam, a new R user group has just formed, called amst-R-dam...","",NA,NA,NA,NA,NA,NA,NA "409",411,"Thursday, February 10, 2011 at 5:05pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/model-weights-for-model-choice/10150090223538583","An ‘Og reader. ...","",NA,NA,NA,NA,NA,NA,NA "410",412,"Wednesday, February 9, 2011 at 8:03pm","4 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/using-r-for-introductory-statistics-chapter-5-probability-distributions/10150089819013583","In Chapter 5 of Using R for Introductory Statistics we get a brief introduction to probability and, as part of that, a few common probability distributions...","Bob Stoner Very interesting post - good for schoolWednesday, February 9, 2011 at 10:40pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "411",413,"Wednesday, February 9, 2011 at 8:03pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/opinions-not-backed-by-money-are-not-that-believableupdated-and-with-r/10150089819028583","As an update to http://timelyportfolio.blogspot.com/2010/12/opinions-not-backed-with-money-are-not.html, I have updated the revised data, added the past two months, and translated to R.If the world really is overly bullish on stocks as some suggest, I would think money would flow visibly in that...","",NA,NA,NA,NA,NA,NA,NA "412",414,"Wednesday, February 9, 2011 at 8:03pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/create-a-web-crawler-in-r/10150089819023583","Admittedly I am not the best R coder, and I certainly have a lot to learn, but the code at the link below should provide you with an example of how easy it is to create a very (repeat: very) basic web crawler in R...","",NA,NA,NA,NA,NA,NA,NA "413",415,"Tuesday, February 8, 2011 at 9:48pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-courses-from-statisticscom/10150089343083583","If you're looking for some in-depth training in R, here are some upcoming courses presented by R gurus and hosted by statistics.com to consider:Feb 11:  Modeling in R (Sudha Purohit -- more details after the jump)Mar 4:  Introduction to R - Data Handling (Paul Murrell)Apr 15:  Programming in R (H...","",NA,NA,NA,NA,NA,NA,NA "414",416,"Tuesday, February 8, 2011 at 9:48pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/example-824-mplusautomation-and-mplus/10150089343088583","In recent entries (here, here, and here), we've been fitting a series of latent class models using SAS and R. One of the most commonly used and powerful software package for latent class model estimation is Mplus...","",NA,NA,NA,NA,NA,NA,NA "415",417,"Tuesday, February 8, 2011 at 9:48pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/replicating-the-body-fat-example-from-bayesian-model-averaging-a-tutorial-1999-w/10150089343093583","In their paper Bayesian Model Averaging: A Tutorial (Statistical Science 14(4), 1999, pp...","",NA,NA,NA,NA,NA,NA,NA "416",418,"Monday, February 7, 2011 at 3:36pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/latent-gaussian-models-im-z%C3%BCrich-day-2/501847238582","The second day at the Latent Gaussian Models workshop in Zürich was equally interesting....","",NA,NA,NA,NA,NA,NA,NA "417",419,"Monday, February 7, 2011 at 3:36pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/twitter-analysis-using-r/501847243582","One of the things that normally slow me down when I am learning a new tool outside working hours is the lack of an interesting project/task that forces me to investigate more about the sort of activities required to finish the project successfully...","",NA,NA,NA,NA,NA,NA,NA "418",420,"Monday, February 7, 2011 at 3:36pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/simple-examplehow-to-use-foreach-and-dosnow-packages-for-parallel-computation/501847228582","In R language, the members at Revolution R provide foreach and doSNOW packages for parallel computation. these packages allow us to compute things in parallel....","",NA,NA,NA,NA,NA,NA,NA "419",421,"Sunday, February 6, 2011 at 7:25am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/japan-intentional-or-accidental-pursuit-of-deflation/501166698582","Japan’s intentional or accidental pursuit of deflation has caused an imbalance far greater than Bernanke’s pursuit of inflation.  Japanese policymakers have allowed Yen appreciation versus all other currencies.  It appears that they recognize a couple of things:1) Higher interest rates and infla...","",NA,NA,NA,NA,NA,NA,NA "420",422,"Sunday, February 6, 2011 at 7:25am","3 people like this","View all 4 comments","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-r-files-dirk-eddelbuettel/501166693582","‎""The R-Files"" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community.  Name: Dirk EddelbuettelBackground: Ph.D....","Pablo Caceres Please, let me put an aditional comment: Did this comment seems something offensive? Well, I pasted the same comment in the blog of Revolution Analytics and it was deleted. And do you know why? because is offensive, but for their enterprise purposes. Just an enterprise represses comments against its purposes. Do you believe someone is going to repress our comments inside the community's forums? No, never.Tuesday, February 8, 2011 at 9:40pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "421",423,"Sunday, February 6, 2011 at 7:25am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/latent-gaussian-models-in-z%C3%BCrich-day-1/501166683582","An interesting first day (for me) at the Latent Gaussian Models workshop in Zürich. The workshop is obviously centred at the INLA approach, with Havard Rue giving a short course on Wednesday then a wide ranging tour of the applications and extensions of INLA this afternoon....","",NA,NA,NA,NA,NA,NA,NA "422",424,"Friday, February 4, 2011 at 10:31pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/post-hoc-pairwise-comparisons-of-two-way-anova/500506073582","I read this post today by John Quick. I was a little taken back when he used a pairwise t-test for post hoc analysis. In a contradiction the t-test did not show differences in the treatment means when the ANOVA model did...","",NA,NA,NA,NA,NA,NA,NA "423",425,"Friday, February 4, 2011 at 10:31pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/research-position-in-forecasting-renewable-energy/500506088582","I don’t normally post job ads except when they are within my own research group. ...","",NA,NA,NA,NA,NA,NA,NA "424",426,"Friday, February 4, 2011 at 10:31pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/assessing-climate-trends-eyeball-versus-regression/500506078582","In a previous post, I showed the Lower Stratospheric Temperature Anomaly (TLS) Trends (link). A reader submitted the following comment: “The lower stratosphere temperature profile is essentially flat from ca. 1995 to the present. ...","",NA,NA,NA,NA,NA,NA,NA "425",427,"Thursday, February 3, 2011 at 1:29pm","2 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-in-production-systems/499789918582","R is great for prototyping models. Not so great if those models have to run a business...","Marco Paolo Valerio Vezzoli real life: I've been there.Thursday, February 3, 2011 at 9:26pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "426",428,"Thursday, February 3, 2011 at 1:29pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/fixing-up-smoothscatter-heat-maps/499789923582","A while back, I posted an article using the smoothScatter function in R that builds a color representation of density for scatter plots. When I first found the function, I was extremely excited because it's a very easy and automated way to make a heat map...","",NA,NA,NA,NA,NA,NA,NA "427",429,"Thursday, February 3, 2011 at 1:29pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-tutorial-series-statistical-analysis-with-r-book-reviews/499789933582","Reviews of my Statistical Analysis with R book have started to emerge online and I am writing today to share them with potential readers and recommenders.ReviewsThe following is a list of online reviews for Statistical Analysis with R...","",NA,NA,NA,NA,NA,NA,NA "428",430,"Wednesday, February 2, 2011 at 4:52am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/tricks-to-manage-memory-in-an-r-session/499153638582","Unless you're using an out-of-memory solution to manage large data objects (such as the RevoScaleR package in Revolution R Enterprise), then R always allocates memory for every object in your working session...","",NA,NA,NA,NA,NA,NA,NA "429",431,"Wednesday, February 2, 2011 at 4:52am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/sab-r-metrics-some-extra-visualization-customization/499153643582","Last post, I described a number of ways to show your data on a scatter plot. Ricky Zanker at THT has a similar post today for those looking to get some extra exposure and another take on R programming. Today, I plan to extend on this with a little more customization...","",NA,NA,NA,NA,NA,NA,NA "430",432,"Wednesday, February 2, 2011 at 4:52am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/atmospheric-temperature-structure-2-stratospheric-cooling/499153633582","In this post I review the temperature structure of the atmosphere and lower stratosphere temperature (TLS) anomaly trends...","",NA,NA,NA,NA,NA,NA,NA "431",433,"Tuesday, February 1, 2011 at 4:53pm","0","0","0","David Ostrowski","Does anyone have any introductory examples to hc.forecast in MSBAR module 'hard condition multivariate time series)? my experiments don't appear to return the results expected.",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "432",434,"Monday, January 31, 2011 at 8:03pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-tutorial-series-two-way-anova-with-pairwise-comparisons/498396393582","By extending our one-way ANOVA procedure, we can test the pairwise comparisons between the levels of several independent variables...","",NA,NA,NA,NA,NA,NA,NA "433",435,"Monday, January 31, 2011 at 8:03pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-gentle-introduction-to-r/498396408582","Whenever a post on this blog requires some data analysis and perhaps a chart or two, my tool of choice is the versatile statistical programming package R. Developed as an open-source implementation of an engine for the S programming language, R is therefore free...","",NA,NA,NA,NA,NA,NA,NA "434",436,"Monday, January 31, 2011 at 8:03pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/tick-data-retrieval/498396383582","I just published Java based code to pull tick data from Interactive Brokers. There are thousands tools to get tick data from IB, but I had one feature in mind.You can get maximum 50 quotes per second from Interactive Brokers (its IB limitation for TWS API) ...","",NA,NA,NA,NA,NA,NA,NA "435",437,"Sunday, January 30, 2011 at 11:35am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/converting-strsplit-output-to-a-dataframe/497583368582","R has a nice set of utilities to work with strings. Function paste is surely one among these. It can be used to ""glue"" several strings with optional separator. The following example shows how paste can be used to create a new variable in a dataset:dat ","",NA,NA,NA,NA,NA,NA,NA "436",438,"Saturday, January 29, 2011 at 3:49am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/homicides-in-mexico-2006-2009/496979843582"," Just today the Mexican government released to the public the mortality database for 2009, and as you can see from the chart Mexico has suffered from a steep rise in homicides from 2008 onward and very likely reached the highest violence rate in recent history last year...","",NA,NA,NA,NA,NA,NA,NA "437",439,"Saturday, January 29, 2011 at 3:49am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/abc-model-choice-not-to-be-trusted-2/496979848582","As we were completing our arXiv summary about ABC model choice, we were helpfully pointed to a recent CRiSM tech. report by X. Didelot, R. Everitt, A. Johansen and D. Lawson on Likelihood-free estimation of model evidence...","",NA,NA,NA,NA,NA,NA,NA "438",440,"Saturday, January 29, 2011 at 3:49am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-programming-books-updated/496979838582","In a recent post, I asked for suggestions for introductory R computing books. In particular, I was looking for books that: Assume no prior knowledge of programming.Assume very little knowledge of statistics...","",NA,NA,NA,NA,NA,NA,NA "439",441,"Thursday, January 27, 2011 at 7:37pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/how-to-label-all-the-outliers-in-a-boxplot/496317338582","In this post I present a function that helps to label outlier observations When plotting a boxplot using R.An outlier is an observation that is numerically distant from the rest of the data...","",NA,NA,NA,NA,NA,NA,NA "440",442,"Thursday, January 27, 2011 at 7:37pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/building-a-better-word-cloud/496317333582","A few weeks ago I attended the NYC Data Visualization and Infographics meetup, which included a talk by Junk Charts blogger Kaiser Fung. Given the topic of his blog, I was a bit shocked that the central theme of his talk was comparing good and bad word clouds...","",NA,NA,NA,NA,NA,NA,NA "441",443,"Thursday, January 27, 2011 at 7:37pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/slides-and-replay-for-portfolio-design-optimization-and-stability-analysis/496317328582","Thanks to everyone who attended yesterday's webinar, ""Portfolio design, optimization and stability analysis"", presented by Diethelm Würtz of the Rmetrics Association and sponsored by Revolution Analytics, Sybase, Finance Online and NeuralTechSoft. ...","",NA,NA,NA,NA,NA,NA,NA "442",444,"Wednesday, January 26, 2011 at 10:36am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rmetrics-at-zurichr/495609598582","This post was kindly contributed by Rmetrics blogs - go there to comment and to read the full post.","",NA,NA,NA,NA,NA,NA,NA "443",445,"Wednesday, January 26, 2011 at 10:36am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/sab-r-metrics-intermediate-scatter-plots/495609613582","First off, I'll say it's been a whirlwind of a past few days. Thanks to David Smith at the Revolutions Blog for his kind words about the sab-R-metrics series and link back this way...","",NA,NA,NA,NA,NA,NA,NA "444",446,"Wednesday, January 26, 2011 at 10:36am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-new-sponsorship-program-for-local-r-user-groups/495609603582","Over the past year, Revolution Analytics has sponsored a number of local R user groups, and we've been thrilled to see the enthusiasm with which R users are coming together...","",NA,NA,NA,NA,NA,NA,NA "445",447,"Tuesday, January 25, 2011 at 1:28am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/trends-in-partisanship-by-state/494932858582","Matthew Yglesias discusses how West Virginia used to be a Democratic state but is now solidly Republican. I thought it would be helpful to expand this to look at trends since 1948 (rather than just 1988) and all 50 states.....","",NA,NA,NA,NA,NA,NA,NA "446",448,"Tuesday, January 25, 2011 at 1:28am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/merge-me-baby-one-more-time/494932863582","OK – has this ever happened to you? You are working with a team of collaborators all using a common dataset – maybe from an Agency, and LTER, or someone else’s data altogether. Eac...","",NA,NA,NA,NA,NA,NA,NA "447",449,"Tuesday, January 25, 2011 at 1:28am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-tutorial-series-one-way-anova-with-pairwise-comparisons/494932868582","When we have more than two groups in a one-way ANOVA, we typically want to statistically assess the differences between each group...","",NA,NA,NA,NA,NA,NA,NA "448",450,"Sunday, January 23, 2011 at 5:59pm","0","0","0","Vincent Granville","","http://www.analyticbridge.com/group/rprojectandotherfreesoftwaretools/forum/topics/chapmanhall-announces-new","R Authors get more choice and variety now- http://www.mail-archive.com/r-help@r-project.org/msg122965.html We are pleased to announce the launch of a new serie…","",NA,NA,NA,NA,NA,NA,NA "449",451,"Sunday, January 23, 2011 at 3:56pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/volcanic-solar-dimming-enso-and-temperature-anomalies/494123828582","In previous posts I have shown plots of global temperature anomaly, volcano and Nino34 trends (here , here)...","",NA,NA,NA,NA,NA,NA,NA "450",452,"Sunday, January 23, 2011 at 3:56pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/disable-auto-update-from-r-windows/494123838582","There are two major threats to complex MCMC estimations:Wrong energy settings (hibernate after 2 hours of inactivity)Automatic Updates (install updates at 3 a.m.)I thought about the latter threat...","",NA,NA,NA,NA,NA,NA,NA "451",453,"Saturday, January 22, 2011 at 6:45am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/model-for-nothing-and-the-bootstrap-for-free/493477088582","Reconstructing phylogenies is an interesting task, sadly one that often requires to navigate between a multitude of software...","",NA,NA,NA,NA,NA,NA,NA "452",454,"Saturday, January 22, 2011 at 6:45am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/interesting-volatility-measurement-part-2/493477083582","A few weeks ago I have mentioned about an interesting volatility prediction. It is based on two periods of historical volatility (standard deviation). The remaining question was – does it really works? I could not give the answer, because I didn’t have VIX futures data at that time. La...","",NA,NA,NA,NA,NA,NA,NA "453",455,"Saturday, January 22, 2011 at 6:45am","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/learning-r-through-baseball-sab-r-metrics/493477068582","The words ""statistics"" and ""baseball"" are often found near each other, but there's a lot more to statistics than dividing the number of hits by the number of swings to get a batting average. And there's a lot more to sabermetrics -- the statistical analysis of baseball -- than averages, too...","",NA,NA,NA,NA,NA,NA,NA "454",456,"Thursday, January 20, 2011 at 7:46pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/call-for-proposals-for-writing-a-book-about-r-via-chapman-hallcrc/492790868582","Rob Calver wrote an interesting invitation on the R mailing list today, inviting potential authors to submit their vision of the next great book about R...","",NA,NA,NA,NA,NA,NA,NA "455",457,"Thursday, January 20, 2011 at 7:46pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-ultimate-exam-excuse/492790878582","A few days after my R exam (available in French here), I received this email from the department secretary:Pour information cet étudiant est venu me trouver jeudi soir, catastrophé car il venait de constater que son stylo “PILOT Frixion”, stylo semble-t-il recommandé par certains enseig...","",NA,NA,NA,NA,NA,NA,NA "456",458,"Thursday, January 20, 2011 at 7:46pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/submit-your-talks-for-the-r-user-conference/492790873582","useR! 2011[*], the annual R user conference supported by the R Foundation for Statistical Computing, will be held this year in the United Kingdom at the University of Warwick (which is located, oddly enough, in Coventry)...","",NA,NA,NA,NA,NA,NA,NA "457",459,"Thursday, January 20, 2011 at 4:33am","0","0","0","Chengjun Wang","thank u all for your work",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "458",460,"Wednesday, January 19, 2011 at 7:57am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/three-tips-for-posting-good-questions-to-r-help-and-stack-overflow/492059873582","As the number of R users and contributed packages increases, activity on the R-help mailing list and the R tag on Stack Overflow also continues to rise. Users with the knowledge to help those asking questions naturally have limited time to assist on these forums...","",NA,NA,NA,NA,NA,NA,NA "459",461,"Wednesday, January 19, 2011 at 7:57am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/workflow-and-the-emacs-starter-kit-for-the-social-sciences/492059888582","Because the next official release of Emacs will finally have a built-in package management system, I’ve been able to update the Emacs Starter Kit for the Social Sciences to make it easier to set up. AucTeX is now installed directly as a package, and so is ESS. ...","",NA,NA,NA,NA,NA,NA,NA "460",462,"Wednesday, January 19, 2011 at 7:57am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/example-821-latent-class-analysis/492059878582","Latent class analysis is a technique used to classify observations based on patterns of categorical responses...","",NA,NA,NA,NA,NA,NA,NA "461",463,"Monday, January 17, 2011 at 9:13pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/introducing-monte-carlo-methods-with-r-precision/491315508582","Doug Rivers, professor of Political Sciences in Stanford, kindly sent me this email yesterday night:The 2nd displayed equation in section 2.1.2 on p. 44 is garbled (it might be interpreted as saying that U and X have the same distribution)...","",NA,NA,NA,NA,NA,NA,NA "462",464,"Monday, January 17, 2011 at 9:13pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/normal-market-accidents/491315518582","We think of accidents as abnormal events, but there is “normal accident” theory. We don’t think of accidents happening in markets, but they do. Tha...","",NA,NA,NA,NA,NA,NA,NA "463",465,"Monday, January 17, 2011 at 9:13pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/m%C3%A9thodes-de-monte-carlo-avec-r-out/491315523582","The translation of the book Introducing Monte Carlo Methods with R is now published and out! I have received five copies in the mail yesterday, although it was not produced in time for my R class students to get it before the exam today...","",NA,NA,NA,NA,NA,NA,NA "464",466,"Monday, January 17, 2011 at 4:57am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/when-1-x-x/490995893582","Trying to dimly recall things from my maths degree, it seems that in most contexts the whole point of the number one is that it is a multiplicative identity. That is, for any x in your set, 1 * x is equal to x...","",NA,NA,NA,NA,NA,NA,NA "465",467,"Sunday, January 16, 2011 at 2:08pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/missing-reference-in-monte-carlo-statistical-methods/490613288582","A few days ago, Peng Yu sent me this emailDear Prof. Robert,The citation Edwards and Sokal (1988) appears on page 326 of your book MCSM2. However, I don’t find in in the Reference section (it would have appear on page 601 if it is in the reference section).I don’t find this error in the errata. Co...","",NA,NA,NA,NA,NA,NA,NA "466",468,"Sunday, January 16, 2011 at 2:08pm","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/adding-lines-or-points-to-an-existing-barplot/490613293582","Sometimes you will need to add some points to an existing barplot...","",NA,NA,NA,NA,NA,NA,NA "467",469,"Sunday, January 16, 2011 at 2:08pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/quickly-adapt-starting-values-in-mcmc-using-paste/490613303582","Waiting for convergence of MCMC models can take some time, therefore it may be a good idea to use better starting values. Using paste, one can quickly convert any (parameter) vector in the workspace into a R-style vector (with c())...","",NA,NA,NA,NA,NA,NA,NA "468",470,"Saturday, January 15, 2011 at 11:34pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/sab-r-metrics-beginning-with-boxplots-scatterplots-and-histograms/490358888582","Today I decided to begin more with visualizations and less with basic statistical analysis for sabermetrics using R...","",NA,NA,NA,NA,NA,NA,NA "469",471,"Saturday, January 15, 2011 at 11:34pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/parsing-and-plotting-time-series-data/490358883582","This morning I came across a post which discusses the differences between scala, ruby and python when trying to analyse time series data. Essentially, there is a text file consisting of times in the format HH:MM and we want to get an idea of its distribution...","",NA,NA,NA,NA,NA,NA,NA "470",472,"Saturday, January 15, 2011 at 8:45am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/webinar-on-portfolio-design-optimization-and-stability-analysis-jan-26/490061943582","We're very excited to host a new webinar from some of the leading researchers in portfolio design: Diethelm Würtz and Mahendra Mehta for the Rmetrics Association. ...","",NA,NA,NA,NA,NA,NA,NA "471",473,"Saturday, January 15, 2011 at 8:45am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/remove-all-rows-of-an-r-dataframe/490061953582","I should have probably figured this out a long time ago, but as I get deeper into programming with R, I am finding the need to remove all rows from a dataframe. I was making this alot harder than it had to be...","",NA,NA,NA,NA,NA,NA,NA "472",474,"Saturday, January 15, 2011 at 8:45am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/changing-phylogeny-tip-labels-in-r/490061948582","During the process of molecular systematic research, specimens are given code names and numbers to keep track of data through the pipeline. These can contain a lot of information of relevance to the researcher, but unfortunately are meaningless to others who aren't as involved with the data...","",NA,NA,NA,NA,NA,NA,NA "473",475,"Friday, January 14, 2011 at 5:55pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/statistical-podcast-random-and-pseudorandom/489775308582","This morning when I downloaded the latest version of In our time, I was pleased to see that this weeks topic was “Random and Peudorandom.” If you’re not familiar with “In our time”, then I can I definitely recommend the series. Each wee...","",NA,NA,NA,NA,NA,NA,NA "474",476,"Friday, January 14, 2011 at 5:55pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/visualizing-the-haiti-earthquake-with-r/489775313582","Yesterday was the one-year anniversary of the Haiti earthquake, and to put the scale of the event in context San Francisco bureau chief for New Scientist magazine and data journalist Peter Aldhous created a time-lapse animation of all large earthquakes in the last year, beginning with the...","",NA,NA,NA,NA,NA,NA,NA "475",477,"Friday, January 14, 2011 at 5:55pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/epl-fantasy-football-best-overall-home-and-away-teams/489775318582","I've refined the R code to pick the best fantasy soccer team by using more granular player performance data (available publicly). Here are the best overall, home and away teams. The constraints used are: 1) Number of goalkeepers = 12) Number of defenders = 43) Number of mid fielders = 34) Number of...","",NA,NA,NA,NA,NA,NA,NA "476",478,"Friday, January 14, 2011 at 3:05am","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/survival-paper-update/489536638582","In a recent post, I discussed some statistical consultancy I was involved with. I was quite proud of the nice ggplot2 graphics I had created...","Dave Garbutt I guess you have to say it is your policy to make graphics that communicateFriday, January 14, 2011 at 8:21am · LikeUnlike · 1Reply",NA,NA,NA,NA,NA,NA,NA "477",479,"Thursday, January 13, 2011 at 9:37am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-attack-of-the-hair-trigger-bees/489164808582","In their book “Complex Adaptive Systems”, authors Miller and Page create a theoretic model for bee attacks, based on the real, flying, honey-making, photogenic stingers. Suppose the hive is threatened by some external creature. So...","",NA,NA,NA,NA,NA,NA,NA "478",480,"Thursday, January 13, 2011 at 9:37am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/cosmopmc-released/489164823582","Martin Kilbinger, an astronomer (cosmologist) with whom we had worked on population Monte Carlo for cosmological inference [during the ANR-05-BLAN-0283- 04 ANR ECOSSTAT grant], has made the PMC C codes available on the CosmoPMC webpage...","",NA,NA,NA,NA,NA,NA,NA "479",481,"Thursday, January 13, 2011 at 9:37am","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/winners-of-mozilla-open-data-competition-announced/489164828582","The winners of the Mozilla Open Data Visualization competition ""How Do People Use Firefox"" have been announced...","Juan Carlos LaGuardia Check out the honorable mentions as well. Very well doneThursday, January 13, 2011 at 3:33pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "480",482,"Wednesday, January 12, 2011 at 6:53pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-number-1-novice-quant-mistake/488837003582","It is ever so easy to make blunders when doing quantitative finance. Very popular with novices is to analyze prices rather than returns.Regression on the pricesWhen you want returns, you should understand log returns versus simple returns...","",NA,NA,NA,NA,NA,NA,NA "481",483,"Wednesday, January 12, 2011 at 6:53pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/create-motion-charts-in-r-with-the-googlevis-package/488837008582","Hans Rosling popularized Motion Charts -- 2-d scatterplots that animate over time -- with the GapMinder project...","",NA,NA,NA,NA,NA,NA,NA "482",484,"Wednesday, January 12, 2011 at 6:53pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/two-short-bayesian-courses-in-southpton/488836998582","An announcement for two short-courses on Introduction to Bayesian Analysis and MCMC, and Hierarchical Modelling of Spatial and Temporal Data by Alan Gelfand (Duke University, USA) and Sujit Sahu (University of Southampton, UK), are to take place in Southampton on June 7-10, this year.Course 1:...","",NA,NA,NA,NA,NA,NA,NA "483",485,"Wednesday, January 12, 2011 at 3:53am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/just-for-fun-recoverygov-data-snooping/488540073582","Okay, so this isn't ecology related at all, but I like exploring data sets. So here goes...Propublica has some awesome data sets available at their website: http://www.propublica.org/tools/I played around with their data set on Recovery.gov (see hyperlink below in code)...","",NA,NA,NA,NA,NA,NA,NA "484",486,"Wednesday, January 12, 2011 at 3:53am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/data-driven-journalism/488540068582","The December 2010 meeting of the Bay Area R Users Group featured Peter Aldhous, San Francisco bureau chief of New Scientist magazine who will give a presentation on ""Data-Driven Journalism""...","",NA,NA,NA,NA,NA,NA,NA "485",487,"Wednesday, January 12, 2011 at 3:53am","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/introducing-the-lowry-plot/488540063582","Here at the Health and Safety Laboratory* we’re big fans of physiologically-based pharmacokinetic (PBPK) models (say that 10 times fast) for predicting concentrations of chemicals around your body based upon an exposure. ...","",NA,NA,NA,NA,NA,NA,NA "486",488,"Tuesday, January 11, 2011 at 12:30pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/opendata-r-google-easy-maps/488144573582"," The release of the R package “googleVis” has made the production of interactive maps through Google’s Chart Tools a simple task. Igno...","",NA,NA,NA,NA,NA,NA,NA "487",489,"Tuesday, January 11, 2011 at 12:30pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/six-places-left-for-the-forecasting-workshop/488144583582","There are six places left for the forecasting workshop I am giving in Switzerland in June. If you were thinking of going, book in fast! This post was kindly contributed by Research tips » R - go there to comment and to read the full post. ","",NA,NA,NA,NA,NA,NA,NA "488",490,"Tuesday, January 11, 2011 at 12:30pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/reasons-for-transitioning-to-vim-bringing-latex-r-sweave-and-more-under-one-roof/488144578582","This post describes the reasons for my transition to Vim.Brief BackgroundOver the years I've used a lot of different text editors on Windows.In general, I've used whatever text editor came with a program.When I started using R, I moved from Rgui through Tinn-R, JGR, and others,finally settling in...","",NA,NA,NA,NA,NA,NA,NA "489",491,"Monday, January 10, 2011 at 9:46pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/seasonal-pair-trading/487848583582","quanttrader.info is a good quantitative repository, where I found an idea about seasonal spreads play.The idea of seasonal pair trading differs from pairs trading in a way, that it doesn’t try to find deviation from the spread’s mean, but it looks at seasonal spread patterns. In...","",NA,NA,NA,NA,NA,NA,NA "490",492,"Monday, January 10, 2011 at 9:46pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/abusing-amazons-elastic-mapreduce-hadoop-service-easily-from-r/487848588582","I built my first Hadoop cluster this week and ran my first two test MapReduce jobs. It took about 15 minutes, 2 lines of R, and cost 55 cents...","",NA,NA,NA,NA,NA,NA,NA "491",493,"Monday, January 10, 2011 at 9:46pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-function-for-extracting-f-test-p-value-from-linear-model-object/487848598582","I thought it would be trivial to extract the p-value on the F-test of a linear regression model (testing the null hypothesis R²=0). If I fit the linear model: fit","",NA,NA,NA,NA,NA,NA,NA "492",494,"Monday, January 10, 2011 at 2:17pm","0","0","0","Ryan Lanham","Hello, I am looking for an R person to do some consulting work possibly in the area of analyzing Foreign Exchange data sets...or sourcing and analyzing FX data sets. Also interested in someone who can crunch trade and or Central bank data of various nations and source the same. Let me know if you are well-qualified and interested...location unimportant. We need PhD level talent.",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "493",495,"Monday, January 10, 2011 at 6:38am","3 people like this","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/batting-and-bowling-performance-in-ashes-2010-2011/487526318582","English cricket is strong once again...","Dan Smith Fascinating stuff. However, since comparison between 2006-7 is key to analysis it would be better to have the batting stats on the same scales. If that is done then Cook's performance would show up even more clearly as remarkable outlier.Monday, January 10, 2011 at 8:20am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "494",496,"Monday, January 10, 2011 at 6:38am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/learnr-toolkit-to-help-excel-users-move-up-to-r/487526323582","As a former Excel chart user, I want to help current Excel users make the transition to more advanced charting R with as little difficulty as possible...","",NA,NA,NA,NA,NA,NA,NA "495",497,"Sunday, January 9, 2011 at 4:18pm","0","0","0","Vincent Granville","","http://www.analyticbridge.com/group/codesnippets/forum/topics/2004291:Topic:15886","This document will help you produce graphs such as this picture. The tutorial (with graphs and code snippets) can be downloaded at frenchlane.com/rtrainings.z…","",NA,NA,NA,NA,NA,NA,NA "496",498,"Sunday, January 9, 2011 at 3:49pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/rcpparmadillo-0211/487129723582","Just before Xmas, Conrad Sanderson released version 1.1.0 of Armadillo, his templated C++ library for linear algebra...","",NA,NA,NA,NA,NA,NA,NA "497",499,"Sunday, January 9, 2011 at 3:49pm","2 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/the-automatic-millionaire-amortization/487129728582","Dan Byrne of Vanderbilt University gave me a book back in October titled The Automatic Millionaire by David Bach. The book is an easy read and full of sound advice that I intend to take. Bach espouses a plan for retirement built on the principles of “paying yourself first” (i.e. be...","",NA,NA,NA,NA,NA,NA,NA "498",500,"Sunday, January 9, 2011 at 3:49pm","9 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/r-and-google-visualization-api/487129718582","R interfaces with the powerful Google Visualization API with the package googleVis (see here). It's relatively easy to convert your graphics in R to interactive graphics to post on a web browser...","",NA,NA,NA,NA,NA,NA,NA "499",501,"Saturday, January 8, 2011 at 10:38am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/heatmap-tables/486586448582"," I blogged earlier (http://socialdatablog.com/what-is-wrong-with-this-graph) about the well-known risks of implying a continuous data scale in a graph where there isn't one. I just produced this alternative in the form of a heatmap table, i.e...","",NA,NA,NA,NA,NA,NA,NA "500",502,"Saturday, January 8, 2011 at 10:38am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/arrogance-sampling/486586443582","A new posting on arXiv by Benedict Escoto on a simulation method for approximating normalising constants (i.e. evidence) with an eye-catching name...","",NA,NA,NA,NA,NA,NA,NA "501",503,"Saturday, January 8, 2011 at 10:38am","4 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/building-a-fact-based-world-view/486586438582","Gapminder is an independent foundation based in Stockholm, Sweden. Its mission is “to debunk devastating myths about the world by offering free access to a fact-based world view“. Th...","",NA,NA,NA,NA,NA,NA,NA "502",504,"Friday, January 7, 2011 at 7:58pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/boris-bikesbarclays-cycle-hire-average-journey-times/486311418582"," The visualisation above shows the average relative duration of Boris Bikers’ weekday journeys over a 4 month period at hourly intervals. ...","",NA,NA,NA,NA,NA,NA,NA "503",505,"Friday, January 7, 2011 at 7:58pm","0","At least 1 comment","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/a-survey-on-abc/486311423582","With Jean-Michel Marin, Pierre Pudlo and Robin Ryder, we just completed a survey on the ABC methodology. It is now both arXived and submitted to Statistics and Computing...","Simone Blomberg This is cool and very useful (at least to me!). I attended a Bayesian inference course by Jean-Michel Marin. He's a clever guy.Saturday, January 8, 2011 at 11:29am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "504",506,"Friday, January 7, 2011 at 5:17am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/new-r-user-group-in-kansas-city/486037508582","There's a new R User Group based in Kansas City, Kansas. Abraham Mathew just launched the group's website, and is looking for R users in the area to kick things off:This group was started to bring together R users in the Kansas City area to exchange knowledge and provide guidance to new R users....","",NA,NA,NA,NA,NA,NA,NA "505",507,"Friday, January 7, 2011 at 5:17am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/some-market-predictions/486037513582","We look at a few forecasts for the year 2011 that we’ve run across, and compare them with the prediction distributions presented in Revised market prediction distributions.FTSE 100There is a “range forecast” on an Interactive Investor page of 5350 to 6565. It ...","",NA,NA,NA,NA,NA,NA,NA "506",508,"Friday, January 7, 2011 at 5:17am","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/formatr-update-01-6/486037498582","A new version of the formatR package is available on CRAN now (binary packages are still on the way)...","",NA,NA,NA,NA,NA,NA,NA "507",509,"Thursday, January 6, 2011 at 2:08pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/new-approach-to-analysis-of-phylogenetic-community-structure/485662293582","Anthony Ives, of University of Wisconsin-Madison, and Matthew Helmus of the Xishuangbanna Tropical Botanical Garden, present a new statistical method for analyzing phylogenetic community structure in an early view paper in Ecological Monographs. See the abstract here...","",NA,NA,NA,NA,NA,NA,NA "508",510,"Thursday, January 6, 2011 at 2:08pm","0","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/sab-r-metrics-introduction-to-r/485662283582","In a recent post, I briefly mentioned that I may turn a majority of the focus of this blog to teaching R commands for use with sabermetric analysis. Only a few days later, Ricky Zanker began a new column at The Hardball Times doing just that. But that's okay...","",NA,NA,NA,NA,NA,NA,NA "509",511,"Thursday, January 6, 2011 at 2:08pm","3 people like this","0","0","R bloggers","","http://www.facebook.com/notes/r-bloggers/short-review-of-the-r-book/485662273582","David Scott wrote a review of Introducing Monte Carlo Methods with R in the International Statistical Review that is rather negative, since the main bulk reads as follows:I found some aspects of the book very disappointing...","",NA,NA,NA,NA,NA,NA,NA "510",512,"Tuesday, December 7, 2010 at 3:34pm","0","0","0","Api Hounzandji","I'll appreciate your help on this. Does anyone know any package that can be used to solve optimization problems subject to general ""NonLinear"" equality constraints ?",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "511",513,"Thursday, November 25, 2010 at 12:05pm","0","At least 1 comment","0","Win Khaing","Dear All, I'm a newbie in R. Please accept me.",NA,NA,"Faisal Muhammad but how? ;DThursday, November 25, 2010 at 6:28pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "512",514,"Tuesday, October 26, 2010 at 7:22am","0","At least 1 comment","0","Pablo Vidal","somebody helpme, I need ""parameter estimation for a generalize gamma distribution""... please, or some method in R.",NA,NA,"Carolina Leal Bastidas ‎:PTuesday, October 26, 2010 at 3:38pm · LikeUnlikeReplyPablo Vidal no converge lo que hago... o si no se tarda demasiado, onda mas de 3 horas y no arrojo nada...Tuesday, October 26, 2010 at 5:09pm · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "513",515,"Monday, October 11, 2010 at 3:39am","0","0","0","Nor Hasliza Asngari","out of bounds error..how i can solve it?",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "514",516,"Sunday, October 10, 2010 at 3:28pm","0","0","0","Pushan KDutta","Hello R bloggers want to know about ANOVA method and Rcode anyone can help",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "515",517,"Tuesday, September 21, 2010 at 11:09pm","0","0","0","Mehdi Zarrei","Is there any sophisticated manual of how to use R within Emmacs?",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "516",518,"Thursday, September 9, 2010 at 11:08am","0","0","0","Unitown Contributors","UNITOWN NEEDS VIDEO BLOGGERS! we're a website for students by students, and we need young, fresh talent to video blog for us. If you're interested drop me a message on FB, or add me as a friend and we'll get the ball rolling! x",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "517",519,"Friday, August 20, 2010 at 6:37pm","0","0","0","Srinivasa Raghavan","I am indian R amateur programmer and data analyst...like to know any Bangalore based R programmer part of R bloggers.",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "518",520,"Tuesday, August 3, 2010 at 4:10pm","0","0","0","Etta Sonietta","‎...I'm trying to create a regional association plot in R... but I am stuck for 2 days... is there anybody that can kindly help a desperate PhD student??????",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "519",521,"Saturday, July 24, 2010 at 5:06pm","0","0","0","Carolina Leal Bastidas","hola!, creemos espacio para que también podamos recibir y entregar informacion en español. :)",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "520",522,"Wednesday, July 14, 2010 at 11:40am","0","0","0","Wolfgang Flamme","A great resource for everything R",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "521",523,"Friday, July 9, 2010 at 6:53am","0","0","0","Eu Soto","Hi ppl! Does anyone know if there is any R package to analyze facebook social network?",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "522",524,"Thursday, June 24, 2010 at 10:18pm","0","At least 1 comment","0","Mehdi Zarrei","I have a some geographical coordinates and would like to map it onto a map using R. Anybody can help?",NA,NA,"Tyler Rudolph check out the r-sig-geo forum! there are a lot of functionalities available through rgdal, sp, maptools, and other packages. there is even a book now on Applied Spatial Data Analysis with R (but a lot of that information is available freely on the web). Tuesday, July 6, 2010 at 6:48am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "523",525,"Tuesday, June 1, 2010 at 1:11am","0","0","0","Sepehr Akhavan","Has anyone ever heard about ""rlogit()"" in R?",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "524",526,"Thursday, May 27, 2010 at 10:18am","0","0","0","Patrizio Frederic","‎> library(fortune) > fortune() Tom Backer Johnsen: I have just started looking at R, and are getting more and more irritated at myself for not having done that before. However, one of the things I have not found in the documentation is some way of preparing output from R for convenient formatting into something like MS Word. Barry Rowlingson: Well whatever you do, don't start looking at LaTeX, because that will get you even more irritated at yourself for not having done it before. -- Tom Backer Johnsen and Barry Rowlingson R-help (February 2006)",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "525",527,"Thursday, May 20, 2010 at 1:26pm","0","0","0","Clark Gaylord","Why did the CreditLoan people spam this wall? Have they all been shot in the head?",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "526",528,"Monday, April 12, 2010 at 6:57pm","0","At least 1 comment","0","Claudia Polo","Hello Everyone, I have a question; I have a column with the following data 23 46 67 1 2 0 0 4 0 And I want a new column where, if the number is greater than 10 put 1, if it is 0 put 1, otherwise 5. So the new column will be 1 1 1 5 5 1 1 5 1 Could anyone please help me with this conditional? Thank you.",NA,NA,"Claudia Polo Thank you very muchTuesday, April 13, 2010 at 12:58am · LikeUnlikeReply",NA,NA,NA,NA,NA,NA,NA "527",529,"Monday, March 22, 2010 at 4:09pm","0","0","0","Matteo Passoni","Hy everyone, i have a problem in changing the x-scale in my plot. The default is (0,200,400,600,800,1000); i would have it like (0,50,100,150,...,1000). How can i do? thanks a lot",NA,NA,"",NA,NA,NA,NA,NA,NA,NA "528",530,"Monday, January 25, 2010 at 3:18am","0","0","0","Washington S. Silva","Very nice and informative, thanks for the blog...",NA,NA,"",NA,NA,NA,NA,NA,NA,NA