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st: RE: xtmixed
From
"Hoffman, George" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: RE: xtmixed
Date
Tue, 14 Feb 2012 10:16:38 -0600
Have you xtset your dataset?
What about xtsum, to get within- and between-subject variance components?
George Hoffman
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Erik Carter
Sent: Monday, February 13, 2012 10:01 PM
To: [email protected]
Subject: st: xtmixed
Hello,
I am attempting to do a icc using the quickicc command following the use of xtmixed. I'm attempting to check repeatability in a sample of 24 individuals with QT measures (a measure of ventricular depolarization). Each individual has various readings of QT; some have 31 whilst others have 5. My question: is it possible to do an analysis using the xtmixed command when obs vary in numbers? Furthermore, I'm unclear if I am using the commands properly as when I use the command xtmixed qt || study_id: I get a iteration string that goes on endlessly.
Any assistance would be appreciated.
Best,
Erik
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