distributions

An assortment of probability distributions.

Note that these implementations do not necessarily use the same parametrization as the corresponding implementations in scipy.stats.

Univariate continuous distributions

argus

ARGUS distribution

benini

Benini Distribution

benktander1

Benktander I Distribution

benktander2

Benktander II Distribution

beta

Beta probability distribution

betaprime

Beta prime probability distribution

burr12

Burr type XII probability distribution

cauchy

Cauchy Distribution

chi

Chi distribution

chi2

Chi-square distribution

cosine

Raised cosine distribution

exponweib

Exponentiated Weibull probability distribution

f

F distribution

folded_normal

Folded normal distribution

gamma

Gamma probability distribution

gamma_gompertz

Gamma/Gompertz distribution

genexpon

Generalized exponential distribution

genextreme

Generalized extreme value distribution

genhyperbolic

Generalized hyperbolic distribution

geninvgauss

Generalized inverse Gaussian distribution

genpareto

Generalized Pareto distribution

gompertz

Gompertz distribution

gumbel_max

Gumbel probability distribution (for maxima)

gumbel_min

Gumbel probability distribution (for minima)

half_logistic

Half-logistic distribution

hypsecant

Hyperbolic secant distribution

invchi2

Inverse chi-square distribution

invgamma

Inverse gamma distribution

invgauss

Inverse Gaussian distribution

kumaraswamy

Kumaraswamy probability distribution

laplace

Laplace distribution

levy

Lévy Distribution

loggamma

Log-gamma probability distribution

logistic

Logistic distribution

loglogistic

Log-logistic distribution

lognormal

Log-normal distribution

maxwell

Maxwell distribution

nakagami

Nakagami distribution

ncf

Noncentral F distribution

nct

Noncentral t distribution

ncx2

Noncentral chi-square distribution

normal

Normal distribution

pareto

Pareto probability distribution (type I)

power_normal

Power normal distribution

rel_breitwigner

Relativistic Breit-Wigner distribution

rice

Rice distribution

slash

Slash distribution

studentt

Student's t distribution

truncnorm

Truncated standard normal distribution

tukeylambda

Tukey's Lambda distribution

uniform

Uniform distribution

vonmises

von Mises distribution

weibull_max

Weibull probability distribution (for maxima)

weibull_min

Weibull probability distribution (for minima)

Multivariate continuous distributions

dirichlet

Dirichlet distribution

multivariate_t

Multivariate t Distribution

Univariate discrete distributions

betabinomial

Beta-binomial distribution

binomial

Binomial distribution

fishers_noncentral_hypergeometric

Fisher's noncentral hypergeometric distribution

gauss_kuzmin

Gauss-Kuzmin distribution

hypergeometric

Hypergeometric distribution

logseries

Log-series distribution

negative_binomial

Negative binomial distribution

negative_hypergeometric

Negative hypergeometric distribution

poisson

Poisson distribution

Multivariate discrete distributions

multivariate_hypergeometric

Multivariate hypergeometric distribution

Utility classes

Initial(initial)

This class allows an initial guess of a parameter to be passed to the mle function of a probability distribution.