stats_dens_gamma

(PECL stats >= 1.0.0)

stats_dens_gammaProbability density function of the gamma distribution

Описание

stats_dens_gamma ( float $x , float $shape , float $scale ) : float

Returns the probability density at x, where the random variable follows the gamma distribution of which the shape parameter is shape and the scale parameter is scale.

Список параметров

x

The value at which the probability density is calculated

shape

The shape parameter of the distribution

scale

The scale parameter of the distribution

Возвращаемые значения

The probability density at x or false for failure.