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contrasts
2009 Mar 18
1
error with effects package.
Dear R helpers,
I have the following model
model_1<-glm(y~A+B+C+E+A:D,contrasts=list(D=contrasts_D),data=mydata,na.action=na.omit)
with: options(contrasts=c("contr.sum", "contr.poly"))
A,B and E are 2-levels factor,
C is covariate,
D is 20 levels factor with 10 in relation with the first levels of
factor A, the other in relation with the second levels of factor A
Here...