Statistic 函数
PHP Manual

stats_rand_gen_chisquare

(PECL stats >= 1.0.0)

stats_rand_gen_chisquareGenerates a random deviate from the chi-square distribution

说明

float stats_rand_gen_chisquare ( float $df )

Returns a random deviate from the chi-square distribution where the degrees of freedom is df.

参数

df

The degrees of freedom

返回值

A random deviate


Statistic 函数
PHP Manual