Message-ID: <1346336673419-4641829.post@n4.nabble.com>
Date: 2012-08-30T14:24:33Z
From: Juan Antonio Balbuena
Subject: use row and col names of a matrix to create colnames of a new one.
Hello
I would appreciate any help with the following:
Given a matrix with col and row names, such as
> matrix1 <- matrix(rnorm(16),4)
> rownames(matrix1) <- LETTERS(1:4)
> colnames(matrix1) <- letters[1:4]
> matrix1
a b c d
A 1.6845882 -0.27809792 -0.874798414 -0.2143993
B -0.9283862 -1.50640703 -0.723568218 -0.4716539
C -1.6945380 -0.12336987 0.003299728 0.1413674
D -0.2715407 -0.05752609 -0.310539234 -1.1146264
I need to create a new matrix whose colnames are A-a, B-b, C-c and D-d. So
the col and rownames of matrix1 are separated by an hyphen.
It is probably very simple, but cannot find the way.
Thank you very much for your time.
--
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