Vectorize a matrix per row

Question

I'd like ot vectorize a matrix in order to get the values "per rows". For example:

mat = matrix(1:4,ncol=2)
mat
     [,1] [,2]
[1,]    1    3
[2,]    2    4

c(mat) # or as.vector(mat). Both give the values "per columns"
[1] 1 2 3 4

I would like to get this:

[1] 1 3 2 4

score 2 · Accepted Answer · edited Dec 16 '13 at 09:14

2

Transpose your matrix first, such as c(t(mat)).

edited Dec 16 '13 at 09:14

Thomas

answered Dec 16 '13 at 09:05

cogitovita

score -2 · Answer 2 · answered Dec 16 '13 at 09:08

-2

Fill matrix by row

matrix(1:4,ncol=2 , byrow=TRUE)  # matrix is filled by rows.

enter image description here

answered Dec 16 '13 at 09:08

shakthydoss

3

@shakthydoss there are better ways to do that. Check out [**how to make a great reproducible example**](http://stackoverflow.com/q/5963269/1478381) for examples/ideas/methods. – Simon O'Hanlon Dec 16 '13 at 13:50

2 Answers2