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