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.