stats_rand_gen_f

(PECL stats:1.0.0-1.0.2)

stats_rand_gen_f — Generates a random deviate

Description

float stats_rand_gen_f ( float $dfn , float $dfd )

Generates a random deviate from the F (variance ratio) distribution with "dfn" degrees of freedom in the numerator and "dfd" degrees of freedom in the denominator. Method : directly generates ratio of chisquare variates.

Parameters

dfn

dfd

Return Values