# stats_rand_gen_ibinomial_negative

(PECL stats >= 1.0.0)

stats_rand_gen_ibinomial_negative — Generates a random deviate from the negative binomial distribution

### 说明

stats_rand_gen_ibinomial_negative ( int `$n` , float `$p` ) : int

Returns a random deviate from a negative binomial distribution where the number of success is `n` and the success rate is `p`.

### 参数

`n`

  The number of success

`p`

  The success rate

### 返回值

A random deviate, which is the number of failure.