PHP 7.1.12 Released


(PECL stats >= 1.0.0)

stats_dens_fProbability density function of the F distribution


float stats_dens_f ( float $x , float $dfr1 , float $dfr2 )

Returns the probability density at x, where the random variable follows the F distribution of which the degree of freedoms are dfr1 and dfr2.

Elenco dei parametri


The value at which the probability density is calculated


The degree of freedom of the distribution


The degree of freedom of the distribution

Valori restituiti

The probability density at x or FALSE for failure.

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