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Re: st: RE: Is there a Stata package to compute the cumulative distribution of a Weibull distribution?


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Is there a Stata package to compute the cumulative distribution of a Weibull distribution?
Date   Thu, 26 May 2011 01:31:03 +0100

You cut your own words and mine, which doesn't help anyone trying to
follow the thread. -findit weibull- turns up lots of links; I haven't
read them all, so I have no way of knowing whether they are all
useless as far as you are concerned.

You asked

"Is there a Stata package to compute the cumulative distribution of a
two-parameter Weibull distribution that I am not aware of?"

and I told you how to compute a cdf. Please forgive me for not knowing
that when you wrote that you actually meant computing a P-value, which
is to me a different problem. I now am not sure quite what P-value you
have in mind, but if you want to test goodness-of-fit you will
(contrary to what you imply) find a test in -weibullfit-.

Nick

On Thu, May 26, 2011 at 1:13 AM, Tiago V. Pereira
<tiago.pereira@mbe.bio.br> wrote:
> Thanks, Nick!
>
> Typing "findit Weibull" does not give any useful results for my case. You
> should know that.
>
> Based on my message, it stands to logic that I am not trying to fit a
> distribution. Perhaps my English is not very clear, sorry. I am trying to
> compute a P-value, since I know that my variable has a Weibull
> distribution (very well established) with parameters, say, b (scale) and c
> (shape) under the null.
>
> Cheers!
>
> Tiago
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