PHPのお勉強!

PHP TOP

stats_dens_pmf_poisson

(PECL stats >= 1.0.0)

stats_dens_pmf_poissonProbability mass function of the Poisson distribution

説明

stats_dens_pmf_poisson(float $x, float $lb): float

Returns the probability mass at x, where the random variable follows the Poisson distribution whose parameter is lb.

パラメータ

x

The value at which the probability mass is calculated

lb

The parameter of the Poisson distribution

戻り値

The probability mass at x or false for failure.

add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top