Hi all, I thought I was not SUCH a nooby:) How can I reverse a sequence/ vector? i.e., turn X <- 3 5 4 2 6 5 4 3 6 Into X <- 6 3 4 5 6 2 4 5 3 I mean without looping and indexing. There should be a very easy solution, shouldn't it? Mario __________________________________________________________________ Mario Maiworm Biological Psychology and Neuropsychology University of Hamburg Von-Melle-Park 11 D-20146 Hamburg Phone: +49 40 42838 3515 Fax: +49 40 42838 6591 http://bpn.uni-hamburg.de/Maiworm_e.html http://cinacs.org
Reverse seq
2 messages · Mario Maiworm, Chuck Cleland
On 3/31/2008 6:31 AM, Mario Maiworm wrote:
Hi all, I thought I was not SUCH a nooby:) How can I reverse a sequence/ vector? i.e., turn X <- 3 5 4 2 6 5 4 3 6 Into X <- 6 3 4 5 6 2 4 5 3 I mean without looping and indexing. There should be a very easy solution, shouldn't it?
> rev(X) [1] 6 3 4 5 6 2 4 5 3 ?rev
Mario
__________________________________________________________________ Mario Maiworm Biological Psychology and Neuropsychology University of Hamburg Von-Melle-Park 11 D-20146 Hamburg Phone: +49 40 42838 3515 Fax: +49 40 42838 6591 http://bpn.uni-hamburg.de/Maiworm_e.html http://cinacs.org ______________________________________________ R-help at 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.
Chuck Cleland, Ph.D. NDRI, Inc. (www.ndri.org) 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894