略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: stats_dens_f

2024-12-27

stats_dens_f

(PECL stats >= 1.0.0)

stats_dens_fProbability density function of the F distribution

说明

stats_dens_f ( float $x , float $dfr1 , float $dfr2 ) : float

Returns the probability density at x, where the random variable follows the F distribution of which the degree of freedoms are dfr1 and dfr2.

参数

x

The value at which the probability density is calculated

dfr1

The degree of freedom of the distribution

dfr2

The degree of freedom of the distribution

返回值

The probability density at x or FALSE for failure.

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址:https://www.php.net/manual/en/function.stats-dens-f.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3