(PECL stats >= 1.0.0)
stats_rand_gen_noncenral_chisquare — Generates random deviate from the distribution of a noncentral chisquare with "df" degrees of freedom and noncentrality parameter "xnonc". d must be >= 1.0, xnonc must >= 0.0
本函数还未编写文档，仅有参数列表。