search for: largematrix

Displaying 1 result from an estimated 1 matches for "largematrix".

2006 Jul 28
2
subset of rows from matrix
Hi all, I have a dataframe of rownames that I would like to extract from a larger matrix to form a new matrix. I have tried to use subset, in this manner x<-subset(largematrix, rownames$names=largematrix$rownames) where largematrix is the larger matrix and rownames$names is the dataframe with the row names of the rows I want to extract from the larger matrix. Of course, I get error messages. Any suggestions how I should proceed? Thanks Wade