Re: How to integrate a function from -inf to a ?

From: John D'Errico <woodchips@xxxxxxxxxxxxxxxx>
Date: Thu, 28 Jul 2005 23:12:01 GMT

In article <ef0f36f.1@xxxxxxxxxxxxxxxx>, Integral <integral@xxxxxxx>
wrote:

> Thanks,but I need to implement the CDF of Student's t-distribution
> and I don't have the statistics toolbox.

Why does nobody ever take advice? (Just bitching.)

I just looked in Abramowitz and Stegun, it shows the
relationship between the Student's T distribution and
the incomplete beta function. 26.7.1 in my (old) copy
of A&S. Since matlab supplies the incomplete beta
function as betainc, this should be all you need.

John

--
The best material model of a cat is another, or
preferably the same, cat.
A. Rosenblueth, Philosophy of Science, 1945
.

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- How to integrate a function from -inf to a ?
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