On 08/01/14 15:09, Ista Zahn wrote:
On Tue, Jan 7, 2014 at 8:30 PM, Pete Brecknock <peter.breckn...@bp.com> wrote:
Krishia wrote
Hello,
I am pretty new to R and would like to transform my 272x12 matrix into a
3264X1. I'm trying to have the setup change from:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
13,14,15,16,17,18,19,20,21,22, 23, 24
etc.
to
1
2
3
4
5
6
7
8
9
10
11
12
etc.
Any suggestions?
Thanks in advance
Krishia
Is this what you are looking for?
# Create example matrice
m <- matrix(c(1,2,3,4,5,6,7,8,9,10,11,12), nrow=4, byrow=TRUE)
# Create vector
v <- c(t(m))
Or just
dim(m) <- NULL
No. That produces column-by-column order, and it appears that the OP
wanted row-by-row order, which is what Peter's solution gives.
BTW it is considered more "politically correct" to use as.vector(M)
rather than c(M) to turn a matrix into a vector, although the result is
exactly the same.
cheers,
Rolf Turner
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
