stats_rand_gen_f(PECL stats >= 1.0.0) stats_rand_gen_f — Generates a random deviate Описание
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. Список параметров
Возвращаемые значения
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