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st: GEE with multiple within subject factors


From   Peter Lewycky <[email protected]>
To   [email protected]
Subject   st: GEE with multiple within subject factors
Date   Sat, 31 Jan 2009 09:38:37 -0500

Good morning StataList,

I have a data set with subject, legs (within subject), time (3 occasions over which measurements are taken on each leg) and 2 readings (measurements per leg).

To specify a unique record I need to specify subject, leg, time and reading. How do I do this in Stata 8.2? I"ve been playing around with 'iis' and 'tsset' to no avail. I keep getting 'time duplicated within a panel' error message' (I can get this to run in SPSS 15 within factors are leg, time and reading but I'd like to try Stata.)

Thanks,

Peter Lewycky
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