Nora -
Do you have time-series data? Just from what you've said, I'm guessing
a GEE model might not be your best option for what you are trying to do.
The logistic command does have a cluster option. So, you could do:
logistic dep_var indep_var, cluster(famvar)
If this doesn't help, write back with more details about what you are
trying to model.
Sarah
Nora Ghaemi wrote:
dear statalisters,
i have to run a logistic regression that has to take into account
clustering of subjects into families.
the command 'logistic' works but does not account for clustering, so the
standard errors are smaller that they should be.
i am trying to use on the same dataset the command xtgee:
xtgee dep_var indep_var, family(binomial) link(logit) i(id)
but invariably i get this response from stata:
estimates diverging (absolute correlation > 1)
r(430);
should I rearrange the data somehow in order to run ‘xtgee’? it was my
understanding that xtgee does not need to ‘tsset’
can anyone help me with this issue?
thanks a lot!
nora
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Sarah A. Mustillo, Ph.D
Department of Psychiatry and Behavioral Sciences
Duke University School of Medicine
Box 3454
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919 687-4686 x231
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