Tried EZanova, no luck with my particular dataset.


Sincerely,

Sergios Charntikov (Sergey), MA

Behavioral Neuropharmacology Lab
Department of Psychology
University of Nebraska-Lincoln
Lincoln, NE 68588-0308  USA




On Mon, Nov 9, 2009 at 2:25 PM, Mike Lawrence <Mike.Lawrence@dal.ca> wrote:

> 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
> <sergioschr@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. ~
>

	[[alternative HTML version deleted]]


