Subscript out of bound error
use 'match' to convert the names to column indices and then use that for indexing indx <- match(subCols, names(yourMatrix) mySubset <- yourMatrix[, indx] Sent from my iPad
On Jul 5, 2013, at 2:22, Chirag Gupta <cxg040 at email.uark.edu> wrote:
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]]
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