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st: firthlogit


From   Nyasha Tirivayi <[email protected]>
To   [email protected]
Subject   st: firthlogit
Date   Sun, 16 Jan 2011 02:30:07 +0100

Hello

I have a problem of quasi-complete separation in my logit model for
[ropensity score matching. I tried using firthlogit instead and I get
the following error "initial vector: matrix must be dimension 27".

In PSM is it worthwile to correct for separation if it occurs? Since I
am unable to solve this problem, should instead remove the problematic
variables?

Kindly advise

N. Tirivayi
Maastricht University
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