[R] Fastest way to merge matrix columns into a comma delimited string?

[Sarah Goslee]

> apply(test, 1, paste, collapse=",")
 [1] "1,2,3" "2,3,1" "3,1,2" "1,2,3" "2,3,1" "3,1,2" "1,2,3" "2,3,1" "3,1,2"
[10] "1,2,3"


On Tue, Jun 15, 2010 at 2:27 PM, Jonathan Greenberg
<greenberg at ucdavis.edu> wrote:
> Folks:
>
> Say I have a matrix:
>
> test=matrix(c(1,2,3),nrow=10,ncol=3)
>
> I would like to have an output character vector where each line is
> row's values delimited by commas, e.g.:
>
> "1,2,3"
> "2,3,1"
> "3,1,2"
> ...
> "1,2,3"
>
-- 
Sarah Goslee
http://www.functionaldiversity.org