Peri, Please stop posting to both R-help and BioConductor simultaneously. Please read the posting guide and decide which list is more appropriate. http://www.R-project.org/posting-guide.html On Thu, 2004-08-19 at 17:20, S Peri wrote: > Dear group, > Apologies for asking the most chomped FAQ. > > I have a file with list of gene names(genes.txt): > EGF > EGFR > PTPN6 > TIEG2 > MAPK1 > > > I have another object in R, I do not know the data > type for that object that looks like this > ("lidnames"): > "RABGGTA" "MAPK3" "TIE" "CYP2C19" > > > > lidnames[1:10] > 100_g_at 1000_at 1001_at 1002_f_at 1003_s_at > "RABGGTA" "MAPK3" "TIE" "CYP2C19" "BLR1" > > > I want to pick list of genes from lidnames object that > are in genes.txt. I am using %in% function. > > >mygenes<-read.table("genes.txt") > > > mygenes[mygenes %in% lidnames] > NULL data frame with 164 rows > > > > I am unable to pullout genes from lidnames object. > > Is it because that lidnames is as a list type and > mygenes object is as a vector/matrix type. > > How can I convert mygenes to list type where I can > have the elements: > > "EGF","EGFR","PTPN6","TIEG2","MAPK1". > > I think in this way I can pull out the names from > lidnames object or any other complex matrix. > > Please help me. > > Thank you > SP > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting- guide.html >