Hi All! I have Affymetrix hgu95 and hgu133 chips for the same experiment. I have tried the "matchprobes" package to look up identical transcripts. However, I have encountered a problem: althogh for a single gene it is possible to look up the identical transcript on the other chip, this is impossible for several genes manually. Is there a way to generate a "matched CEL file" for hgu95 and hgu133 chips, which could be analysed by the conventional way? OR: a much more simple question: is it possible to generate a "probe.set.name" list of those genes, which are identical on hgu95 and hgu133 chips? Thank you: Balazs

Hi Balazs Have you already looked at the combine.AffyBatch function in that package? Bw Wolfgang Dr_Gyorffy_Balazs wrote: > Hi All! > > I have Affymetrix hgu95 and hgu133 chips for the same > experiment. I have tried the "matchprobes" package to look > up identical transcripts. However, I have encountered a > problem: althogh for a single gene it is possible to look > up the identical transcript on the other chip, this is > impossible for several genes manually. Is there a way to > generate a "matched CEL file" for hgu95 and hgu133 chips, > which could be analysed by the conventional way? > > > Thank you: > Balazs > > _______________________________________________ > Bioconductor mailing list > Bioconductor@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor -- ------------------------------------- Wolfgang Huber Division of Molecular Genome Analysis German Cancer Research Center Heidelberg, Germany Phone: +49 6221 424709 Fax: +49 6221 42524709 Http: www.dkfz.de/abt0840/whuber

Dr_Gyorffy_Balazs wrote: > Ho Wolfgang, > Ich habe keine PDF File gefunden. Gibt es eine f?r die > Matchprobes Library? Hi Balazs, the vignette of the release 1.4 version of matchprobes is kaputt. But see: http://www.bioconductor.org/repository/devel/vignette/matchprobes.pdf or library(reposTools) install.packages2("matchprobes", develOK=TRUE) library(matchprobes) openVignette() page 4. Bw - Wolfgang -- ------------------------------------- Wolfgang Huber Division of Molecular Genome Analysis German Cancer Research Center Heidelberg, Germany Phone: +49 6221 424709 Fax: +49 6221 42524709 Http: www.dkfz.de/abt0840/whuber