stats_rand_gen_noncenral_chisquare
(PECL stats >= 1.0.0)
stats_rand_gen_noncenral_chisquare — Generates a random deviate from the non-central chi-square distribution
说明
stats_rand_gen_noncenral_chisquare
( float
$df
, float $xnonc
) : float
Returns a random deviate from the non-central chi-square distribution with degrees of freedom,
df, and non-centrality parameter, xnonc.
参数
-
df -
The degrees of freedom
-
xnonc -
The non-centrality parameter
返回值
A random deviate
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