stats_dens_beta

    (PECL stats >= 1.0.0)

    stats_dens_beta — Probability density function of the beta distribution

    说明

    stats_dens_beta(float $x, float $a, float $b): float

    Returns the probability density at x, where the random variable follows the beta distribution of which the shape parameters are a and b.

    参数

    x

    The value at which the probability density is calculated

    a

    The shape parameter of the distribution

    b

    The shape parameter of the distribution

    返回值

    The probability density at x or false for failure.

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