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stats_rand_gen_beta

(PECL stats:1.0.0-1.0.2)

stats_rand_gen_beta — Generates beta random deviate

说明

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.

参数

a

b

返回值


出售域名  LinuxTags