On Aug 18, 2011, at 2:35 PM, Eduardo Mendes wrote:
Dear R-Users
I have the following matrix
out$desc [,1] [,2]
[1,] "" ""
[2,] "y_{01}(k-001)" ""
[3,] "y_{01}(k-002)" ""
[4,] "y_{01}(k-003)" ""
[5,] "u_{01}(k-001)" ""
[6,] "u_{01}(k-002)" ""
[7,] "u_{01}(k-003)" ""
[8,] "y_{01}(k-001)" "y_{01}(k-001)"
[9,] "y_{01}(k-001)" "y_{01}(k-002)"
[10,] "y_{01}(k-001)" "y_{01}(k-003)"
[11,] "y_{01}(k-001)" "u_{01}(k-001)"
and need to concatenate each line to a single string. Something like
[2,] "y_{01}(k-001)" "" -> [2,] "y_{01}(k-001)"
[11,] "y_{01}(k-001)" "u_{01}(k-001)" -> [11,] "y_{01}(k-001)*u_{01}
(k-001)"
Is there a way to do it without going through every column?
apply(out$desc, 1, paste, collapse="")
It is ambiguous what you want for a delimiter. In one case you used
"", and another you used "*". I used "".
--
David Winsemius, MD
West Hartford, CT
______________________________________________
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.
