stats_dens_laplace
(PECL stats >= 1.0.0)
stats_dens_laplace — Probability density function of the Laplace distribution
说明
stats_dens_laplace
( float
$x
, float $ave
, float $stdev
) : float
Returns the probability density at x, where the
random variable follows the Laplace distribution of which the location parameter
is ave and the scale parameter is stdev.
参数
-
x -
The value at which the probability density is calculated
-
ave -
The location parameter of the distribution
-
stdev -
The shape parameter of the distribution
返回值
The probability density at x or FALSE for failure.