one way is:
mat <- matrix(rnorm(2500*12), 2500, 12)
ind <- rowSums(mat > 0) > 6
mat[ind, ]
I hope it helps.
Best,
Dimitris
A Ezhil wrote:
Dear All,
I have matrix of size 2500 x 12. I would like to select all the rows if 6 out 12 values are > 0. How can I do that in R?
Thanks in advance.
Kind regards,
Ezhil
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--
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
