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st: Parameter restrictions in MLE

From   Deepankar Basu <>
Subject   st: Parameter restrictions in MLE
Date   Thu, 25 May 2006 21:58:39 -0400

I am trying to do a maximum likelihood estimation where some of the
parameters of the model are probabilities; hence they should add up to

What is the best way to put restrictions on the relevant parameters and
constrain them to add up to unity?

Any help will be appreciated. 

Deepankar Basu 

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