Displaying 1 result from an estimated 1 matches for "covariate_aov".
2009 Feb 10
2
Mixed ANCOVA with between-Ss covariate?
...xpand.grid(
id=1:20
,iv1 = 1:2
,iv2 = 1:2
)
)
a$group = factor(a$id<11)
a$dv = rnorm(length(a[,1]))
a$covariate = NA
for(i in unique(a$id)){
a$covariate[a$id==i]= rnorm(1)
}
#make sure id, iv1, and iv2 are factorized
a$id=factor(a$id)
a$iv1=factor(a$iv1)
a$iv2=factor(a$iv2)
#run ANCOVA
covariate_aov = aov(dv~covariate+group*iv1*iv2+Error(id/(iv1*iv2)),data=a)
summary(covariate_aov)
--
Mike Lawrence
Graduate Student
Department of Psychology
Dalhousie University
www.thatmike.com
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