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Re: st: gamma


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: gamma
Date   Thu, 11 Oct 2012 13:31:54 +0100

There is no function -gamma()-, largely I suspect because its values
become very big.

There is a function -lngamma()-, so you would need -exp(lngamma())-.

Almost all of this can be established by looking at the help for -functions-.

Nick

On Thu, Oct 11, 2012 at 1:25 PM, Jason Rosenberg <RSNJAS002@myuct.ac.za> wrote:
> hi
> I an attempting to put this equation into stata:
>
> gen prob=(v/gamma(alpha/v))*(beta^(2*alpha)/(6+11.2)^(alpha+1))*exp(-(beta^2/(6+11.2))^v)
> where v, alpha, and beta are predefined my the user
> and I get :
> unknown function gamma()
>
> Is there another syntax I should know for gamma?
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