try this:
mat <- matrix(c(1,4,3,6), 2, 2)
cbind(
do.call(cbind, rep(list(mat), 3)),
c(2, 5)
)
I hope it helps.
Best,
Dimitris
wendy wrote:
Hi all,
I have a matrix, for example
[,1] [,2]
[1,] 1 3
[2,] 4 6
I want to replicate the matrix twice and add an extra column at the end,
which is
[,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,] 1 3 1 3 1 3 2
[2,] 4 6 4 6 4 6 5
I found 'rep' only works for vector. Does anyone know how to replicate a
matrix, and append the matrix?
Thank you in advance,
Wendy
--
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center
Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014
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