If you don't get a response: reproducible example, please.
I suspect that you're looking at numerical analysis artifacts, assuming I have correctly interpreted you. -- Bert Gunter Genentech Non-Clinical Statistics South San Francisco, CA "The business of the statistician is to catalyze the scientific learning process." - George E. P. Box > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Laura Quinn > Sent: Wednesday, February 08, 2006 9:50 AM > To: [email protected] > Subject: [R] slightly off-topic re prcomp() > > Hi, > > I was wondering if anyone could tell me why prcomp() will > "Invent" modes > of variation in a PCA on identical replicates of data? I would have > expected 50 (or whatever number) of identical replicates to > return a null > score in such an analysis (or at the least, all variables > would share the > same PC score). This is not the case and I was wondering could someone > point me in the direction of some literature to explain the > reason behind > this? > > Laura Quinn > Institute of Atmospheric Science > School of Earth and Environment > University of Leeds > Leeds > LS2 9JT > > tel: +44 113 343 1596 > fax: +44 113 343 6716 > mail: [EMAIL PROTECTED] > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
