Dear R users, ?rgamma gives me :
rgamma(n, shape, rate = 1, scale = 1/rate) rate: an alternative way to specify the scale. The Gamma distribution with parameters shape = a and scale = s has density f(x)= 1/(s^a Gamma(a)) x^(a-1) e^-(x/s) Should I understand that scale=1/rate ? Is it written somewhere ? Then rgamma(n, shape=a, scale = s) should be equivalent to rgamma(n, shape=a, rate =1/s). I don't find this very clear. Thanks for your help. Randall [[alternative HTML version deleted]]
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