[R] repeated measure in GLM
tlumley at u.washington.edu
Wed Nov 19 17:10:17 CET 2003
On Wed, 19 Nov 2003, John Christie wrote:
> I was recently asked to perform a GLM analysis (the person comes from
> the JMP world) on a repeated measures design. I have found some things
> using aov but I cannot find anything with glm. In fact, multiple
> regressions in general with repeated measures seems to be poorly
> covered in documentation. I remember SPSS has separate commands to
> handle them.
> I have within variables SOA and ec and a between factor subjrt. The
> independent variable was RT. The ec factor cannot be construed as
> parameteric whereas SOA can.
If the person comes from the JMP world, GLM doesn't translate as glm().
You probably want either aov() or lme() [in the nlme package], depending
on how complicated the analysis is.
Thomas Lumley Assoc. Professor, Biostatistics
tlumley at u.washington.edu University of Washington, Seattle
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