Have you tried ezANOVA from the ez pacakge? It attempts to provide a simple user interface to car's ANOVA (and when that fails, aov).
On Mon, Nov 9, 2009 at 1:44 PM, Sergios (Sergey) Charntikov <sergios...@gmail.com> wrote: > Hello everyone, > > I am trying to do within subjects repeated measures anova followed by the > test of sphericity (sample dataset below). > I am able to get either mixed model or linear model anova and TukeyHSD, but > have no luck with Repeated-Measures Assuming Sphericity or Separate > Sphericity Tests. > I am trying to follow example from "car" package, but it seems that I am not > getting something right. > >> Dataset$Sessn <- as.factor(Dataset$Sessn) > >> LinearModel.1 <- lm(Response ~ Sessn*Trtmt, data=Dataset) > >> summary(LinearModel.1) > > All, good so far, but I have problem understanding "idata=" and "idesign=" > functions pertaining to my example. Session is my repeated measure (Sessn 1 > and Sessn 2 = two sessions, in reality I have more) and it is already > stacked. Any help or guidance on this matter. > > Thank you, my mock dataset is below. Each subject has two levels of > treatment throughout four calendar days which are recoded to Session 1 and > Session 2 in order to compare treatments by the first and subsequent days of > exposure (Treatment x Session; my DV is Response; Session is repeated). > > Subj Trtmt Sessn Response 1 N 1 5 1 D 1 6 1 N 2 4 1 D 2 7 2 N 1 8 > 2 D 1 9 2 N 2 2 2 D 2 1 3 N 1 4 3 D 1 5 3 N 2 6 3 D 2 2 4 N 1 5 4 D > 1 6 4 N 2 4 4 D 2 7 5 N 1 8 5 D 1 9 5 N 2 2 5 D 2 1 6 N 1 4 6 D 1 5 > 6 N 2 6 6 D 2 2 > > Sincerely, > > Sergios Charntikov (Sergey), MA > > Behavioral Neuropharmacology Lab > Department of Psychology > University of Nebraska-Lincoln > Lincoln, NE 68588-0308 USA > > sergioschr-at-gmail-dot-com > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > > -- Mike Lawrence Graduate Student Department of Psychology Dalhousie University Looking to arrange a meeting? Check my public calendar: http://tr.im/mikes_public_calendar ~ Certainty is folly... I think. ~ ______________________________________________ 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.
