略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: stats_dens_pmf_negative_binomial

2024-12-26

stats_dens_pmf_negative_binomial

(PECL stats >= 1.0.0)

stats_dens_pmf_negative_binomialProbability density function of the negative binomial distribution

说明

stats_dens_pmf_negative_binomial ( float $x , float $n , float $pi ) : float

Returns the probability density at x, where the random variable follows the negative binomial distribution of which the number of the success is n and the success rate is pi.

参数

x

The value at which the probability density is calculated

n

The number of the success of the distribution

pi

The success rate 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-pmf-negative-binomial.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3