stats_dens_exponential
(PECL stats >= 1.0.0)
stats_dens_exponential — Probability density function of the exponential distribution
Description
stats_dens_exponential(float
$x, float $scale): float
Returns the probability density at x, where the
random variable follows the exponential distribution of which the scale is
scale.
Parameters
-
x -
The value at which the probability density is calculated
-
scale -
The scale of the distribution
Return Values
The probability density at x or false for failure.
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