stats_dens_pmf_negative_binomial
(PECL stats >= 1.0.0)
stats_dens_pmf_negative_binomial — Probability mass function of the negative binomial distribution
说明
Returns the probability mass 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 mass is calculated
n-
The number of the success of the distribution
pi-
The success rate of the distribution
返回值
The probability mass at x or false for failure.
＋添加备注
用户贡献的备注
此页面尚无用户贡献的备注。
备份地址：http://www.lvesu.com/blog/php/function.stats-dens-pmf-negative-binomial.php