stats_dens_f

    (PECL stats >= 1.0.0)

    stats_dens_f — Probability density function of the F distribution

    Description

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

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

    Parameters

    x

    The value at which the probability density is calculated

    dfr1

    The degree of freedom of the distribution

    dfr2

    The degree of freedom of the distribution

    Return Values

    The probability density at x or false for failure.

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