Hello All, I need your help. I am analysing affymetrix data and have to select the probe-set that has median expression among all the probe-sets for same gene. This way I want to remove the redundancy by keeping the analysis to single gene entry level. I am fully aware that it is not a nice thing to do but I just have to do it.
To do so, I came across 'findLargest' function of 'genefilter' package but it's not well documented; and I do not know how to implement the 'findLargest' function. At this point I have: esetRMA <- rma(mydata) Could anybody guide me on how can I select single probeset with median expression from multiple probe-sets corresponding to single gene and discard others? Is there any other way to achieve so i.e. other than using 'genefilter'? Genefilter package: http://www.bioconductor.org/packages/2.11/bioc/html/genefilter.html Thanks AK -- Atul Kakrana Delaware Technology Park ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
