Generates random deviates from a gamma distribution


(PECL stats >= 1.0.0)

stats_rand_gen_gammaGenerates random deviates from a gamma distribution

Описание

float stats_rand_gen_gamma ( float $a , float $r )

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

Список параметров

a

location parameter of Gamma distribution (a > 0).

r

shape parameter of Gamma distribution (r > 0).

Возвращаемые значения