Generates beta random deviate


(PECL stats >= 1.0.0)

stats_rand_gen_betaGenerates beta random deviate

Описание

float stats_rand_gen_beta ( float $a , float $b )

Returns 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

b

Возвращаемые значения