PHP - Manual: stats_dens_beta
2025-02-27
(PECL stats >= 1.0.0)
stats_dens_beta — Probability density function of the beta distribution
Returns the probability density at x
, where the
random variable follows the beta distribution of which the shape parameters
are a
and b
.
x
The value at which the probability density is calculated
a
The shape parameter of the distribution
b
The shape parameter of the distribution
The probability density at x
or false
for failure.
官方地址:https://www.php.net/manual/en/function.stats-dens-beta.php