Thank you also for your help
Michel
Le 20/11/2013 19:04, Dennis Murphy a écrit :
Hi:
which(m == 1L, arr.ind = TRUE)
Dennis
On Wed, Nov 20, 2013 at 2:28 AM, Arnaud Michel <michel.arn...@cirad.fr> wrote:
Hi
I have the following problem
I would like to build, from a matrix filled with 0 and with 1, a matrix
or a data.frame which contains, in every line, the number of the line
and the number of the column of the matrix for which the value is equal
to 1.
Exemple :
dput(m)
structure(c(0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1,
0, 0, 0, 1, 0, 0, 0, 0), .Dim = c(5L, 5L))
Result
1 5
2 3
2 4
4 1
4 3
Thank you for your help
--
Michel ARNAUD
Chargé de mission auprès du DRH
DGDRD-Drh - TA 174/04
Av Agropolis 34398 Montpellier cedex 5
tel : 04.67.61.75.38
fax : 04.67.61.57.87
port: 06.47.43.55.31
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--
Michel ARNAUD
Chargé de mission auprès du DRH
DGDRD-Drh - TA 174/04
Av Agropolis 34398 Montpellier cedex 5
tel : 04.67.61.75.38
fax : 04.67.61.57.87
port: 06.47.43.55.31
______________________________________________
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.
