rownames,NOx,C,E 1,3.741,12,0.907 2,2.295,12,0.761 3,1.498,12,1.108 4,2.881,12,1.016 5,0.76,12,1.189 6,3.12,9,1.001 7,0.638,9,1.231 8,1.17,9,1.123 9,2.358,12,1.042 10,0.606,12,1.215 11,3.669,12,0.93 12,1,12,1.152 13,0.981,15,1.138 14,1.192,18,0.601 15,0.926,7.5,0.696 16,1.59,12,0.686 17,1.806,12,1.072 18,1.962,15,1.074 19,4.028,15,0.934 20,3.148,9,0.808 21,1.836,9,1.071 22,2.845,7.5,1.009 23,1.013,7.5,1.142 24,0.414,18,1.229 25,0.812,18,1.175 26,0.374,15,0.568 27,3.623,15,0.977 28,1.869,7.5,0.767 29,2.836,7.5,1.006 30,3.567,9,0.893 31,0.866,15,1.152 32,1.369,15,0.693 33,0.542,15,1.232 34,2.739,15,1.036 35,1.2,15,1.125 36,1.719,9,1.081 37,3.423,9,0.868 38,1.634,7.5,0.762 39,1.021,7.5,1.144 40,2.157,7.5,1.045 41,3.361,18,0.797 42,1.39,18,1.115 43,1.947,18,1.07 44,0.962,18,1.219 45,0.571,9,0.637 46,2.219,9,0.733 47,1.419,9,0.715 48,3.519,9,0.872 49,1.732,7.5,0.765 50,3.206,7.5,0.878 51,2.471,7.5,0.811 52,1.777,15,0.676 53,2.571,18,1.045 54,3.952,18,0.968 55,3.931,15,0.846 56,1.587,15,0.684 57,1.397,7.5,0.729 58,3.536,7.5,0.911 59,2.202,7.5,0.808 60,0.756,7.5,1.168 61,1.62,7.5,0.749 62,3.656,7.5,0.892 63,2.964,7.5,1.002 64,3.76,18,0.812 65,0.672,18,1.23 66,3.677,18,0.804 67,3.517,12,0.813 68,3.29,12,1.002 69,1.139,9,0.696 70,0.727,9,1.199 71,2.581,9,1.03 72,0.923,15,0.602 73,1.527,15,0.694 74,3.388,15,0.816 75,2.085,15,1.037 76,0.966,15,1.181 77,3.488,7.5,0.899 78,0.754,7.5,1.227 79,0.797,9,1.18 80,2.064,7.5,0.795 81,3.732,18,0.99 82,0.586,18,1.201 83,0.561,7.5,0.629 84,0.563,9,0.608 85,0.678,12,0.584 86,0.37,15,0.562 87,0.53,18,0.535 88,1.9,18,0.655