stats_rand_gen_beta
(PECL stats >= 1.0.0)
stats_rand_gen_beta — Generates beta random deviate
설명
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.
인수
-
a -
-
b -
반환값
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