stats_dens_exponential

stats_dens_exponential

(PECL stats >= 1.0.0)

stats_dens_exponential — Probability density function of the exponential distribution

Description

float stats_dens_exponential ( float $x , float $scale )

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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