stats_rand_gen_gamma
(PECL stats >= 1.0.0)
stats_rand_gen_gamma — Generates a random deviate from the gamma distribution
Описание
stats_rand_gen_gamma
( float
$a
, float $r
) : floatGenerates a random deviate 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
A random deviate