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2011 Dec 01
0
nested random effects with lmer
...ithin clinics, and
each subject has multiple measurements.
For simplicity, suppose there 4 clinics, 3 subjects per clinic, and each
subject has 3 repeated measures.
Outcome is continuous. I am trying to implement this model with lmer
function in lme4 library.
lmeobj1<-lmer(outcome~med+time+medtime+(time|clinid)+(subjid|clinid))
My data set is as follows: med has two levels, time has three levels,
medtime is the interaction between med and time, subjid is the id numbers
for subjects,
clinid is the id numbers for clinics. I pasted the data below.
The above code is giving the same res...