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Revisit parameterization question

From: Tsai, Kuenhi <kuenhi_tsai>
Date: Mon, 15 Sep 2008 11:37:06 -0400

Dear All,

I am working on a data set that the estimates become quite different
under different model assumptions (such as fixed or not fixed ka,
different block structure) using ADVAN4 TRANS1. One suggests me that I
should use TRANS4 to avoid the problem of the high correlations among
ka, Cl, V, k, and k12. When I reviewed the previous NM user discussion
in "reparameterization", the highest "scored" discussion occurred in
2001. I am wondering whether there are any updated discussion and
references on this topic. Any of your help are greatly appreciated.

All the best

Kuenhi Tsai
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Received on Mon Sep 15 2008 - 11:37:06 EDT

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