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stats_dens_chisquare

(PECL stats >= 1.0.0)

stats_dens_chisquareProbability density function of the chi-square distribution

Description

stats_dens_chisquare(float $x, float $dfr): float

Returns the probability density at x, where the random variable follows the chi-square distribution of which the degree of freedom is dfr.

Parameters

x

The value at which the probability density is calculated

dfr

The degree of freedom of the distribution

Return Values

The probability density at x or false for failure.

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