Re: st: qbeta and covariates?

[Maarten buis <maartenbuis@yahoo.co.uk>]

--- On Thu, 24/3/11, David Pacheco wrote:
> I’m using betafit with covariates for alfha and
> beta, but…How I can use this same setting in qbeta? 
> because I need to test the goodness-of-fit. I’ve tried
> to put the covariates in the qbeta syntax, but it has
> not worked.

--- 2011/3/24 Nick Cox <njcoxstata@gmail.com>:
> > Sorry, but there is no syntax for specifying
> > covariates with -qbeta-.
> > I don't know what kind of plot you would expect, but
> > -qbeta- is focused on single-variable distributions.

On my computer I have a version of -betafit- that has
such a program. In essence it compares the distribution
of the dependent variable with a simulated distribution
assuming that your -betafit- model is correct. If the 
model fits then the two distributions should be similar. 
I am about to leave for a holiday (without laptop), so I 
do not know if I will be able to upload it shortly. If
you need it quickly, you can contact me privately and I
may be able to sent a version to you privately (but no
garantees).

-- Maarten (like Nick one the authors of -betafit-)

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

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