stats_dens_cauchy

(PECL stats >= 1.0.0)

stats_dens_cauchy — Probability density function of the Cauchy distribution

说明

stats_dens_cauchy ( float $x , float $ave , float $stdev ) : float

Returns the probability density at x, where the random variable follows the Cauchy distribution whose location and scale are ave and stdev, respectively.

参数

x

The value at which the probability density is calculated

ave

The location parameter of the distribution

stdev

The scale parameter of the distribution

返回值

The probability density at x or FALSE for failure.

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