stats_dens_normal

(PECL stats >= 1.0.0)

stats_dens_normal — Probability density function of the normal distribution

Description

float stats_dens_normal ( float $x , float $ave , float $stdev )

Returns the probability density at x, where the random variable follows the normal distribution of which the mean is ave and the standard deviation is stdev.

Parameters

x: The value at which the probability density is calculated
ave: The mean of the distribution
stdev: The standard deviation of the distribution

Return Values

The probability density at x or FALSE for failure.