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
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