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st: RE: Positivity


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Positivity
Date   Tue, 29 Jul 2008 18:49:32 +0100

If you mean: How can I ensure that I get positive estimates for
coefficients I expect to be positive, the answer is to reparametrise in
terms of logarithms. 

Otherwise, please expand on this question.

Nick
n.j.cox@durham.ac.uk 

Teresa Linz

And I have another question; does anybody know how I could 
programme positivity for some coefficients in Stata?

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