stats_rand_gen_normal
(PECL stats >= 1.0.0)
stats_rand_gen_normal — Generates a single random deviate from a normal distribution
说明
stats_rand_gen_normal
( float
$av
, float $sd
) : float
Returns a random deviate from the normal distribution with mean, av, and standard deviation,
sd.
参数
-
av -
The mean of the normal distribution
-
sd -
The standard deviation of the normal distribution
返回值
A random deviate