Thank you Gabor Grothendieck for your message. I would surely like to say, that if someone wants to assume AR(1) residuals, running the regression y ~ x, could run
gls(y~x, correlation = corAR1(0, ~1)) Constantine Tsardounis http://www.costis.name ______________________________________________ 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.