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Re: st: Suggestions for Second Edition of A Visual Guide to Stata Graphics


From   Ronan Conroy <rconroy@rcsi.ie>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Suggestions for Second Edition of A Visual Guide to Stata Graphics
Date   Thu, 26 Jul 2007 17:21:05 +0100

On 25 Jul 2007, at 18:34, Nick Cox wrote:

I am not clear what the difficulty here is at all. Please give
a specific example or more detail.
I have encountered the same problem, trying to make a graph for a researcher. She wanted to plot something for patients with antibody A, antibody B, either antibody, both antibodies and without either antibody.

Clearly the groups are not mutually exclusive, and a nuisance to plot. While Stata is good at groups which are mutually exclusive, it does not seem to foresee overlapping groups on the same plot - probably because you can't see them ending up in the same model.

I ended up calculating relative risks and confidence intervals for each of the groups above, then making a little dataset of them and using -metan- to display the results.

P Before printing, think about the environment
=================================
Ronan Conroy
rconroy@rcsi.ie
Royal College of Surgeons in Ireland
120 St Stephen's Green, Dublin 2, Ireland
+353 (0)1 402 2431
+353 (0)87 799 97 95





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