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Re: st: regressing on percentages.


From   Daniel Schneider <daniel.schneider@stanford.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: regressing on percentages.
Date   Mon, 27 Aug 2007 10:27:58 -0700

This is an interesting question.

You might want to look at:

Michael Tomz, Joshua A. Tucker and Jason Wittenberg (2002): An Easy and Accurate Regression Model for Multiparty Electoral Data; Political Analysis, 10:1

However, their log-transformation does create some interesting issue that I am still trying to figure out...

Daniel

Ricardo Ovaldia wrote:

Dear all,

I think that this question was previously asked on the
list, but I could not find it in the archives.

I have data from cases and controls. The data consists
of percentages of various cell types for each
individual. The percentages sum to 100 for each
person. I want to compare the two distributions (cases
and controls) while adjusting for subject's
characteristics.

Is there an appropriate model in Stata to do this?

Thank you, Ricardo
Ricardo Ovaldia, MS
Statistician Oklahoma City, OK


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