Displaying 3 results from an estimated 3 matches for "mlmfit1".
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2007 May 13
2
Some questions on repeated measures (M)ANOVA & mixed models with lme4
...come ~ group * time + baseline + Error(subj+subj:time))
(from: http://cran.r-project.org/doc/contrib/Baron-rpsych.pdf, p. 41)
C. "Repeated measures" MANOVA as follows (using data in wide format):
response <- cbind(time1,time2,time3,time4,time5,time6)
mlmfit <- lm(response ~ group)
mlmfit1 <- lm(response ~ 1)
mlmfit0 <- lm(response ~ 0)
# Test time*group effect
anova.mlm(mlmfit, mlmfit1, X=~1, test="Spherical")
# Test overall group effect
anova.mlm(mlmfit, mlmfit1, M=~1)
# Test overall time effect
anova.mlm(mlmfit1, mlmfit0, X=~1, test="Spherical")
(taken f...
2005 Jun 15
1
Anohter anova.mlm problem
Hi,
yet another anova.mlm problem - it doesn't seem to end.
This time, I have a setup with a few within-subject factors and a
between-subject factor (SGROUP). Consider the most simple case with only one
within-factor (apo):
> mlmfit0 <- lm(data.n ~ 0 + SGROUP)
> mlmfit1 <- lm(data.n ~ 1 + SGROUP)
> anova(mlmfit1,mlmfit0,test="Spherical",M=~hemi,X=~1)
Analysis of Variance Table
Model 1: data.n ~ 1 + SGROUP
Model 2: data.n ~ 0 + SGROUP
Contrasts orthogonal to
~1
Contrasts spanned by
~hemi
Greenhouse-Geisser epsilon: 0.6829
Huynh-Feldt epsilon:...
2005 Nov 15
1
Repeates Measures MANOVA for Time*Treatment Interactions
Dear R folk,
First off I want to thank those of you who responded with comments for
my R quick and dirty stats tutorial. They've been quite helpful, and
I'm in the process of revising them. When it comes to repeated
measures MANOVA, I'm in a bit of a bind, however. I'm beginning to see
that all of the documentation is written for psychologists, who have a
slightly