Re: [R] matrix position to list of coordinates

Hi Ana, most probably this is one of the more ugly solutions: > d=dim(A) > d [1] 2 4 > cbind(rep(1:d[1], each=d[2]), rep(1:d[2], d[1])) [,1] [,2] [1,]11 [2,]12 [3,]13 [4,]14 [5,]21 [6,]22 [7,]23 [8,]24 Thanks, wr * Ana [2012

Re: [R] matrix position to list of coordinates

Hi Ana, > d=dim(A) > d [1] 2 4 > cbind(rep(1:d[1], each=d[2]), rep(1:d[2], d[1])) [,1] [,2] [1,]11 [2,]12 [3,]13 [4,]14 [5,]21 [6,]22 [7,]23 [8,]24 Thanks, wr * Ana [2012-01-01 23:21:12 +0100]: > How can I extract a list of

Re: [R] matrix position to list of coordinates

Hi Ana, most probably this is one of the more ugly solutions: > d=dim(A) > d [1] 2 4 > cbind(rep(1:d[1], each=d[2]), rep(1:d[2], d[1])) [,1] [,2] [1,]11 [2,]12 [3,]13 [4,]14 [5,]21 [6,]22 [7,]23 [8,]24 Thanks, wr * Ana [2012-

Re: [R] matrix position to list of coordinates

Here's one way: > data.frame(rowID=as.vector(row(A)), colID=as.vector(col(A)), A=as.vector(A)) rowID colID A 1 1 1 1 2 2 1 2 3 1 2 3 4 2 2 4 5 1 3 5 6 2 3 6 7 1 4 7 8 2 4 8 You can sort that as desired. Sarah On Sun, Jan 1, 2012 a

[R] matrix position to list of coordinates

How can I extract a list of the positions in the matrix? > A=matrix(1:8, nrow=2,ncol=4) > A [,1] [,2] [,3] [,4] [1,]1357 [2,]2468 Something like this pos.A 1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4 __ R-help@r-project.org m