Statistic Functions
PHP Manual

stats_rand_gen_gamma

Generates a random deviate from the gamma distribution

Description

float stats_rand_gen_gamma(float $a, float $r)

Generates a random deviate from the gamma distribution whose density is (A**R)/Gamma(R) * X**(R-1) * Exp(-A*X).

Parameters

a

location parameter of Gamma distribution (a > 0).

r

shape parameter of Gamma distribution (r > 0).

Return Values

A random deviate