Hi I haven't received any ideas yet - I just wanted to confirm if this is a simple question? Should I follow the idea of checking if slope +- stddev slope overlap?
Thanks, Rainer Rainer M Krug wrote: > Hi > > I have (8 measures * 96 groups) = 768 datasets for which I did linear > regressions using lm(). > > Now I want to compare the slopes for each of the 8 measures in each of > the 96 groups. As I understand , I can not use >> anova(lm1, ..., lm8) > as the lm1 ... lm8 are based on different datasets. > > I also read in previous discussions in this list, that I can see if the > slope +- stddev(slope) overlap, but this seems a long process for the > huge number of comparisons. > > Therefore my question: is there a way to compare the slopes of lm() > which are based on different datasets and what is the easiest way to do > it for this large number of datasets? > > Thanks in advance for your help, > > Rainer > -- Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation Biology (UCT) Department of Conservation Ecology and Entomology University of Stellenbosch Matieland 7602 South Africa Tel: +27 - (0)72 808 2975 (w) Fax: +27 - (0)21 808 3304 Cell: +27 - (0)83 9479 042 email: [EMAIL PROTECTED] [EMAIL PROTECTED] ______________________________________________ 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.