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2007 Jun 05
1
lme vs. SAS proc mixed. Point estimates and SEs are the same, DFs are different
R 2.3
Windows XP
I am trying to understand lme. My aim is to run a random effects regression in which the intercept and jweek are random effects. I am comparing output from SAS PROC MIXED with output from R. The point estimates and the SEs are the same, however the DFs and the p values are different. I am clearly doing something wrong in my R code. I would appreciate any suggestions of how I can change the R code to get t...