Hi All I have a huge matrix m (10276 X 10276) dimension with same column name and row names. (its a gene correlation matrix). I have another text file which has 2700 names, basically locus ID of genes, which are also rownames/colnames in m. Now I want to select all those columns from m whose names match with the names in the text file and return ONLY those columns and ALL the rows in a matrix format. That is, the output should a matrix of dimension 10276 X 2700.
I have played around with subset and also tried all different methods like reading the text file, converting to matrix and character and DF and tried all possible ways I found on the web. The problem is that some of them work on a smaller simulated dataset but says "Subscript out of bounds" when I try on the bigger matrix(m). Please help.. :( Thanks! -- *Chirag Gupta* Department of Crop, Soil, and Environmental Sciences, 115 Plant Sciences Building, Fayetteville, Arkansas 72701 [[alternative HTML version deleted]] ______________________________________________ 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.