PHP マニュアル: Generates a random deviate from the noncentral F distribution

説明

float stats_rand_gen_noncentral_f(float $dfn, float $dfd, float $xnonc)

Returns a random deviate from the non-central F distribution where the degrees of freedoms are dfn (numerator) and dfd (denominator), and the non-centrality parameter is xnonc.

パラメータ

dfn: The degrees of freedom of the numerator
dfd: The degrees of freedom of the denominator
xnonc: The non-centrality parameter

戻り値

A random deviate