use row and col names of a matrix to create colnames of a new one.
On Aug 30, 2012, at 7:24 AM, Juan Antonio Balbuena wrote:
matrix1 <- matrix(rnorm(16),4) rownames(matrix1) <- LETTERS[1:4] # fixed the coding error colnames(matrix1) <- letters[1:4]
matrix2 <- matrix1 colnames(matrix2) <- paste(rownames(matrix1),colnames(matrix1),sep="-") matrix2
David Winsemius, MD Alameda, CA, USA