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stats_dens_chisquare

(PECL stats >= 1.0.0)

stats_dens_chisquareProbability density function of the chi-square distribution

Descrierea

float stats_dens_chisquare ( float $x , float $dfr )

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

Parametri

x

The value at which the probability density is calculated

dfr

The degree of freedom of the distribution

Valorile întoarse

The probability density at x or FALSE for failure.

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