Hi every one, How is it possible to create a matrix with 3 dimensions from several 2 dimensional matrice? Is it possible that each of "elementary/building block" matrices could be called by its corresponding original name? Thanks alot. -- View this message in context: http://r.789695.n4.nabble.com/How-to-create-a-matrix-with-3-dimensions-from-several-2-dimensional-matrice-tp4237360p4237360.html Sent from the R help mailing list archive at Nabble.com.
How to create a matrix with 3 dimensions from several 2 dimensional matrice?
3 messages · ali_protocol, jim holtman, Richard M. Heiberger
Is this what you are after:
x1 <- matrix(1:25, 5) x2 <- x3 <- x1 # combine matrices, redimension and then rename z <- cbind(x1, x2, x3) dim(z) <- c(5, 5, 3) z # without names
, , 1
[,1] [,2] [,3] [,4] [,5]
[1,] 1 6 11 16 21
[2,] 2 7 12 17 22
[3,] 3 8 13 18 23
[4,] 4 9 14 19 24
[5,] 5 10 15 20 25
, , 2
[,1] [,2] [,3] [,4] [,5]
[1,] 1 6 11 16 21
[2,] 2 7 12 17 22
[3,] 3 8 13 18 23
[4,] 4 9 14 19 24
[5,] 5 10 15 20 25
, , 3
[,1] [,2] [,3] [,4] [,5]
[1,] 1 6 11 16 21
[2,] 2 7 12 17 22
[3,] 3 8 13 18 23
[4,] 4 9 14 19 24
[5,] 5 10 15 20 25
dimnames(z) <- list(NULL, NULL, c('x1', 'x2', 'x3')) # object names
z
, , x1
[,1] [,2] [,3] [,4] [,5]
[1,] 1 6 11 16 21
[2,] 2 7 12 17 22
[3,] 3 8 13 18 23
[4,] 4 9 14 19 24
[5,] 5 10 15 20 25
, , x2
[,1] [,2] [,3] [,4] [,5]
[1,] 1 6 11 16 21
[2,] 2 7 12 17 22
[3,] 3 8 13 18 23
[4,] 4 9 14 19 24
[5,] 5 10 15 20 25
, , x3
[,1] [,2] [,3] [,4] [,5]
[1,] 1 6 11 16 21
[2,] 2 7 12 17 22
[3,] 3 8 13 18 23
[4,] 4 9 14 19 24
[5,] 5 10 15 20 25
On Tue, Dec 27, 2011 at 10:34 AM, ali_protocol
<mohammadianalimohammadian at gmail.com> wrote:
Hi every ?one, How is it possible ?to create a matrix with 3 dimensions from several 2 dimensional matrice? Is it possible that each of "elementary/building block" matrices could be called by its corresponding ?original name? Thanks alot. -- View this message in context: http://r.789695.n4.nabble.com/How-to-create-a-matrix-with-3-dimensions-from-several-2-dimensional-matrice-tp4237360p4237360.html Sent from the R help mailing list archive at Nabble.com.
______________________________________________ R-help at 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.
Jim Holtman Data Munger Guru What is the problem that you are trying to solve? Tell me what you want to do, not how you want to do it.
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