SAS cannot deal with multiple levels of random effects in a generalized linear mixed model whereas the lmer function can handle multiple levels. The SAS proc can only deal with 1 level of clustering and it is still extremely s l o w ..
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Matthew Keller > Sent: Tuesday, January 15, 2008 2:45 PM > To: R Help > Subject: [R] things that are difficult/impossible to do in > SAS or SPSS butsimple in R > > Hi all, > > I'm giving a talk in a few days to a group of psychology > faculty and grad students re the R statistical language. Most > people in my dept. > use SAS or SPSS. It occurred to me that it would be nice to > have a few concrete examples of things that are fairly > straightforward to do in R but that are difficult or > impossible to do in SAS or SPSS. However, it has been so long > since I have used either of those commercial products that I > am drawing a blank. I've searched the forums and web for a > list and came up with just Bob Muenchen's comparison of > general procedures and Patrick Burns' overview of the three. > Neither of these give concrete examples of statistical > problems that are easily solved in R but not the commercial packages. > > Can anyone more familiar with SAS or SPSS think of some > examples of problems that they couldn't do in one of those > packages but that could be done easily in R? Similarly, if > there are any examples of the converse I would also be > interested to know. > > Best, > > Matt > > -- > Matthew C Keller > Asst. Professor of Psychology > University of Colorado at Boulder > www.matthewckeller.com > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
