stats_rand_gen_beta
(PECL stats >= 1.0.0)
stats_rand_gen_beta — Generates a random deviate from the beta distribution
Описание
stats_rand_gen_beta
( float
$a
, float $b
) : floatReturns a random deviate from the beta distribution with parameters A and B. The density of the beta is x^(a-1) * (1-x)^(b-1) / B(a,b) for 0 < x <. Method R. C. H. Cheng.
Список параметров
-
a -
The shape parameter of the beta distribution
-
b -
The shape parameter of the beta distribution
Возвращаемые значения
A random deviate