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st: Problem with variables in glamm
From
"Alice Dalton (MED)" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: Problem with variables in glamm
Date
Mon, 7 Oct 2013 11:53:51 +0000
Dear Statlist,
I'm having a problem with the gllamm program (family(binomial) link(logit)).
1. My dependant variable (a proportion) will only work if the variable contains a zero, otherwise I get an r(2000) (no observations) error
2. Adding binary explanatory variables (eg a health variable where 1 excellent, 0 not excellent) results in the message 'variables have been dropped, can't continue' and an r(198) error. The null model works; the null model works with continuous variables added in; the null model plus one or more binary variables fails.
The command I am using is gllamm [depvar] [varlist], i(ParticipantId) family(binomial) link(logit). I have 276 cases and 129 variables (not all of which are added to the model).
If anyone with experience of gllamm has an idea of what is happening here, I would be most grateful to hear it.
Thank you!
Alice Dalton
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