stats_dens_weibull
Probability density function of the Weibull distribution
説明
float stats_dens_weibull(float $x, float $a, float $b)
Returns the probability density at x, where the
random variable follows the Weibull distribution of which the shape parameter
is a and the scale parameter is b.
パラメータ
-
x
-
The value at which the probability density is calculated
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a
-
The shape parameter of the distribution
-
b
-
The scale parameter of the distribution
戻り値
The probability density at x or false for failure.