Hi For my purpose, I need to match variance estimates for each group from R and SAS. They do match now. I notice there are still some difference between those two. For example the standard errors of coeffieicints are different, but I don't care those.
Dieter Menne wrote: > > > > To conserve you sanity, don't try it. They will be different. > > Dieter > > > -- View this message in context: http://www.nabble.com/Fit-unequal-variance-model-in-R-tp22829549p22874008.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.