Re: [R] error with effects package.

lto:r-help-boun...@r-project.org] On Behalf Of Frédéric Hérault Sent: March-18-09 9:57 AM To: r-help@r-project.org Subject: [R] 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=

Re: [R] error with effects package.

ct.org > Subject: [R] 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.omi t > ) > with: options(contrasts=c("contr.sum", "contr.

[R] 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 leve