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d2
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