stats_rand_gen_f
(PECL stats >= 1.0.0)
stats_rand_gen_f — Generates a random deviate from the F distribution
Описание
stats_rand_gen_f
( float
$dfn
, float $dfd
) : floatGenerates 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
-
dfn -
The degrees of freedom in the numerator
-
dfd -
The degrees of freedom in the denominator
Возвращаемые значения
A random deviate