Hi, I am new to R and not fantastic at statistics so it may well be that I am doing something silly but I can't figure out what it is and hoping that somebody can help.
I am running package lme4, and trying to get a Residuals vs. Fitted graph. When I try to plot, I receive an error. Error in as.double(y) : cannot coerce type 'S4' to vector of type 'double' Here is the code I am using library("lme4") m1<-lmer(y~trt*time*loc_block*Season+(1|ID), data=d) plot(m1,add.smooth=F,which=1) Error in as.double(y) : cannot coerce type 'S4' to vector of type 'double' I searched the forums for some answers but haven't found anything useful. Any insight into what I am doing wrong and how to fix it. Sara [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.