try this: a <- c(1,2,3,4,5,6)
n <- length(a) a[seq(1, n, 2)] a[seq(2, n, 2)] I hope it helps. Best, Dimitris Walther, Alexander wrote:
Dear list, is there a command that selects every second value from a given vector? For instance, a <- c(1,2,3,4,5,6) should yield 1,3,5 and 2,4,6 which i intend to place into two seperate vectors. best Alex ______________________________________________ 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.
-- Dimitris Rizopoulos Assistant Professor Department of Biostatistics Erasmus University Medical Center Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands Tel: +31/(0)10/7043478 Fax: +31/(0)10/7043014 ______________________________________________ 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.
