Hello, in the function "normalize.AffyBatch.invariantset" the function chipNames will be used. This function is not available in the Package affy. I think it should be changed to sampleNames() Best Markus -- Dipl.-Tech. Math. Markus Schmidberger Ludwig-Maximilians-Universit?t M?nchen IBE - Institut f?r medizinische Informationsverarbeitung, Biometrie und Epidemiologie Marchioninistr. 15, D-81377 Muenchen URL: http://ibe.web.med.uni-muenchen.de Mail: Markus.Schmidberger [at] ibe.med.uni-muenchen.de

Thanks for pointing that out. Fixed now in devel. Best, Jim Markus Schmidberger wrote: > Hello, > > in the function "normalize.AffyBatch.invariantset" the function > chipNames will be used. > This function is not available in the Package affy. > > I think it should be changed to sampleNames() > > Best > Markus > -- James W. MacDonald, M.S. Biostatistician Affymetrix and cDNA Microarray Core University of Michigan Cancer Center 1500 E. Medical Center Drive 7410 CCGC Ann Arbor MI 48109 734-647-5623