Poisson

public enum Poisson

Poisson distribution

  • Returns a SSProbDistParams struct containing mean, variance, kurtosis and skewness of the Binomial distribution.

    Throws

    SSSwiftyStatsError if lambda <= 0, n < 0

    Declaration

    Swift

    public static func para<FPT>(numberOfEvents n: Int, rate lambda: FPT) throws -> SSProbDistParams<FPT> where FPT : Decodable, FPT : Encodable, FPT : SSFloatingPoint

    Parameters

    n

    Number of events
    lambda

    rate

  • Returns the cdf of the Poisson Distribution

    Throws

    SSSwiftyStatsError if lambda <= 0, k < 0

    Declaration

    Swift

    public static func cdf<FPT>(k: Int, rate lambda: FPT, tail: SSCDFTail) throws -> FPT where FPT : Decodable, FPT : Encodable, FPT : SSFloatingPoint

    Parameters

    k

    number of events
    lambda

    rate
    tail

    .lower, .upper

  • Returns the pdf of the Poisson Distribution

    Throws

    SSSwiftyStatsError if lambda <= 0, k < 0

    Declaration

    Swift

    public static func pdf<FPT>(k: Int, rate lambda: FPT) throws -> FPT where FPT : Decodable, FPT : Encodable, FPT : SSFloatingPoint

    Parameters

    k

    number of events
    lambda

    rate