Function Reference: icdf

statistics: retval = icdf (name, p, …)

Return the inverse CDF of name distribution function for value p.

This is a wrapper for the nameinv and name_inv functions available in the statistics package. See the corresponding functions’ help to learn the signification of the arguments after p.

name must be a char string of the name or the abbreviation of the desired quantile distribution function as listed in the followng table. The last column shows the maximum number of extra arguments that must be passed to the desired inverse CDF.

Distribution NameAbbreviationMax Arguments
"Birnbaum-Saunders""bbs"3
"Beta""beta"2
"Binomial""bino"2
"Burr""burr"3
"Cauchy""cauchy"2
"Chi-square""chi2"1
"Extreme Value""ev"4
"Exponential""exp"1
"F-Distribution""f"2
"Gamma""gam"2
"Geometric""geo"1
"Generalized Extreme Value""gev"3
"Generalized Pareto""gp"3
"Hypergeometric""hyge"3
"Laplace""laplace"2
"Logistic""logistic"2
"Lognormal""logn"2
"Nakagami""naka"2
"Negative Binomial""nbin"2
"Noncentral F-Distribution""ncf"3
"Noncentral Student T""nct"2
"Noncentral Chi-Square""ncx2"2
"Normal""norm"2
"Poisson""poiss"1
"Rayleigh""rayl"1
"Standard Normal""stdnormal"0
"Student T""t"1
"Triangular""tri"3
"Discrete Uniform""unid"1
"Uniform""unif"2
"Weibull""wbl"2

See also: cdf, pdf, random, bbsinv, betainv, binoinv, burrinv, cauchy_inv, chi2inv, evinv, expinv, finv, gaminv, geoinv, gevinv, gpinv, hygeinv, laplace_inv, logistic_inv, logninv, nakainv, nbininv, ncfinv, nctinv, ncx2inv, norminv, poissinv, raylinv, stdnormal_inv, tinv, triinv, unidinv, unifinv, wblinv

Source Code: icdf