comparing 3 levels of fixed factor in lme4
On Jul 30, 2012, at 13:51 , Obermeier Andrew wrote:
Then your understanding is wrong, and you need to read a text on basic linear modelling theory. Nothing specifically mixed-model or even R relevant about that. Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com
If you have a specific book to suggest I would appreciate it. I have Pinhiero and Bates (2000), Mixed Effects Models in S and S-Plus, but have not found specific mentioned of how the t value is derived there yet. I admit my ignorance in this area, and apologize if my questions are dumb, but nevertheless would appreciate some civility. Andrew Obermeier
You probably need something from the level just below MEMSS. There's Maindonald & Braun, although I don't have a copy to hand just now. You might also take a look at the Faraway PDF (or buy his more recent book) at http://cran.at.r-project.org/other-docs.html Specifically, take a look chapter 15 and chapter 3.1--3. (And apologies if I came across a bit abrasive, but you did ask the same question about four times...)
Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com