I am sorry to ask a trivial question but I am not a statistician. When I need to compare more than two groups in a unbalanced design with SAS system I use PROC GLM (like the example in data5.csv from Cody R. "Applied statistics and SAS programming language" p.223). R glm gives different results.
Thanks Massimo Cressoni
______________________________________________ R-help@stat.math.ethz.ch 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.