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1m
2009 Oct 27
0
anova interaction contrasts: crossing helmert and linear contrasts
...various commands, etc.). ?Any help is greatly appreciated.
Here is my data:
fatigue = c(3,2,2,3,2,3,4,3,2,4,5,3,3,2,4,5,4,5,5,6,4,6,9,8,4,3,5,5,6,6,6,7,9,10,12,9)
n <- 3
train <- gl(3, 4*n, labels=c("6wks", "4wks", "2wks"))
dist <- rep(gl(4,n,labels=c("1mi","2mi","3mi","4mi")),3)
What I would like to do is test two interaction contrasts that cross linear
coefficients of the variable "dist" with the two sets of helmert contrasts of
the variable "train".
I have tried so many things I think are wr...