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stats_dens_exponential

(PECL stats >= 1.0.0)

stats_dens_exponentialProbability 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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