(PECL stats >= 1.0.0)
stats_dens_logistic — Probability density function of the logistic distribution
$x, float $ave, float $stdev): float
Returns the probability density at x, where the
random variable follows the logistic distribution of which the location parameter
is ave and the scale parameter is stdev.
xThe value at which the probability density is calculated
aveThe location parameter of the distribution
stdevThe shape parameter of the distribution
The probability density at x or false for failure.