stats_dens_beta
(PECL stats >= 1.0.0)
stats_dens_beta — Probability density function of the beta distribution
说明
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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