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stats_rand_gen_gamma

Generates random deviates from a gamma distribution (PECL stats:1.0.0-1.0.2)
float stats_rand_gen_gamma ( float a, float r )

Generates random deviates from the gamma distribution whose density is (A**R)/Gamma(R) * X**(R-1) * Exp(-A*X).

Parameters

a

location parameter of Gamma distribution (a > 0).

r

shape parameter of Gamma distribution (r > 0).

Return Values