Probe level normalization
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suri ghani ▴ 40
@suri-ghani-4809
Last seen 9.8 years ago
How to perform the normalization using the individual probe expression values instead of the probeset expression values in Limma or any other bioconductor package?? Thanks in advance.. Regards, Suresh [[alternative HTML version deleted]]
probe limma probe limma • 711 views
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@james-w-macdonald-5106
Last seen 9 hours ago
United States
Hi Suresh, On 11/30/2011 7:49 AM, suri ghani wrote: > How to perform the normalization using the individual probe expression values instead of the probeset expression values in Limma or any other bioconductor package?? I'm not sure what you are asking here. Could you please rephrase? What platform are you talking about here? The term 'probeset' usually pertains to the Affymetrix microarray platform. If you are in fact using Affy data, then you won't use limma for normalization. If you state clearly what you are trying to do, then maybe someone can help. Best, Jim > > Thanks in advance.. > > Regards, > Suresh > > [[alternative HTML version deleted]] > > > > _______________________________________________ > Bioconductor mailing list > Bioconductor at r-project.org > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor -- James W. MacDonald, M.S. Biostatistician Douglas Lab University of Michigan Department of Human Genetics 5912 Buhl 1241 E. Catherine St. Ann Arbor MI 48109-5618 734-615-7826 ********************************************************** Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues
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you can use rma to normalize them library(xtable) library(affyPLM) library(GOstats) library(annotate) library(genefilter) library(affycoretools) > > rawData <- read.affybatch(filenames=list.celfiles()) > sampleNames(rawData)= > gsub('\\_\\(HG-U133\\_Plus\\_2\\)','',sampleNames(rawData)) > > eset <- rma(rawData) > [[alternative HTML version deleted]]
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