Hello, For ease of compatiblity with other manipulations I do, I would like to set to "NA" those R,G,Rb,Gb, M,A values for which my weight is "0". Is limma robust to having NA values present, including rows/genes where all values are NA? I ask because a few of the other array packages I use are rather cranky about NA values. Thanks, Michael Gates

Michael, Limma will work directly with your "weights", weighting analyses for each spot by its weight. See ?lmFit. Sean On Aug 11, 2004, at 2:39 PM, magates@u.washington.edu wrote: > Hello, > > For ease of compatiblity with other manipulations I do, I would like > to set > to "NA" those R,G,Rb,Gb, M,A values for which my weight is "0". Is > limma > robust to having NA values present, including rows/genes where all > values are > NA? > I ask because a few of the other array packages I use are rather > cranky about > NA values. > > Thanks, > Michael Gates > > _______________________________________________ > Bioconductor mailing list > Bioconductor@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor