Hi all, I have a problem selecting some rows from a random data. I'd like to select the same rows (before 0) .
For example: A [1] 0 [2] 1 [3] 2 [4] 0 [5] 1 [6] 0 [7] 1 [8] 2 [9] 3 [10] 4 I'd like to select the row where a = 2 1 4 I searched on the search of the R site but I did'nt find anything of simple. Can someone help me? Thank you very much Seangduan ______________________________________________ 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.