1. Your post is unacceptable (imho, of course). Read the bottom of this message (re: "posting guide") and re-post properly.
2. This is not an R-help question. Re-post on r-sig-mixed-models -- or perhaps on a non-R statistical forum like stats.stackexchange.com, as this appears to have little to do with R, per se. -- Bert On Thu, Jul 26, 2012 at 9:28 AM, Angela Brant <angela.br...@googlemail.com> wrote: > > > Hi all, > > I've fit a mixed linear model to some longitudinal data. I'm interested in > the differences in patterns of decrease in the dependent variable according > to group status, and my hypothesis particularly predicts a difference between > the groups in trajectory of change at between specific ages. The data shows a > significant interaction between group and the linear and quadratic effects of > age, but I don't know if there is a way to assess this interaction for one > part of the age range, or if I need to be able to do so in order to interpret > my results as bing supportive of my hypothesis. > > Thanks for any help/advice! > > ______________________________________________ > 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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.