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# stats_rand_gen_f

(PECL)

stats_rand_gen_f -- 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

## 说明

float stats_rand_gen_f ( float dfn, float dfd )

警告
本函数暂无文档，仅有参数列表。

## 参数

`dfn`

  Its description

`dfd`

  Its description

## 返回值

What the function returns, first on success, then on failure. See also the &return.success; entity

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