Hi Yongde, you do not need a special version of PCA for Affy data, a generic implementation, e.g. mva::princomp, should do.
Best regards Wolfgang ------------------------------------- Wolfgang Huber http://www.dkfz.de/mga/whuber Division of Molecular Genome Analysis German Cancer Research Center Heidelberg, Germany ------------------------------------- On Tue, 1 Apr 2003, Yongde Bao wrote: > Can someone point out for me where to find a package to do principal > component analysis for Affy data, if existing? > Thanks, Yongde > > Yongde Bao, Ph.D > Biomolecular Research Facility > Department of Microbiology > University of Virginia School of Medicine > Charlottesville, VA 22908 > > E-mail: [EMAIL PROTECTED] > Voice mail: 434-982-2551, 434-924-2553 > FAX: 434-982-2514 > ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help