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Devarajan, Karthik wrote: > Hello! > > When I use the functions rma() or justrma() in the affy package, the > standard errors for the expression estimates computed by the function > se.exprs() is a matrix of NA's. I am wondering if any of you have > encountered this problem and if there is a solution. Any help would be > appreciated. You need to use the affyPLM package. Specifically, see ?rmaPLM and the quality assessment vignette. Best, Jim > > Thanks, > Karthik. > > > > > > [[alternative HTML version deleted]] > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor -- James W. MacDonald Affymetrix and cDNA Microarray Core University of Michigan Cancer Center 1500 E. Medical Center Drive 7410 CCGC Ann Arbor MI 48109 734-647-5623