# stats_rand_gen_noncentral_f

(PECL stats >= 1.0.0)

stats_rand_gen_noncentral_f — Generates a random deviate from the noncentral F distribution

### 说明

stats_rand_gen_noncentral_f ( float `$dfn` , float `$dfd` , float `$xnonc` ) : float

Returns a random deviate from the non-central F distribution where the degrees of freedoms are `dfn` (numerator) and `dfd` (denominator), and the non-centrality parameter is `xnonc`.

### 参数

`dfn`

  The degrees of freedom of the numerator

`dfd`

  The degrees of freedom of the denominator

`xnonc`

  The non-centrality parameter

### 返回值

A random deviate