Try this: x[x %in% y]
On 14/03/2008, Rainer M Krug <[EMAIL PROTECTED]> wrote: > Hi > > Consider the following code > > > x <- rep(1:13, 13) > > > y <- 1:3 > > I want to select all elements in x which are equal to 1, 2 or 3. > > I know that I could use > > > sel <- x==y[1] | x==y[2] | x==y[3] > > x[sel] > > to obtain the values, but in my analysis, the y-vector is thousands of > elements long. > > Is there any way, that I can do that easily? > > Thanks > > Rainer > -- > Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation Biology (UCT) > > Plant Conservation Unit Department of Botany > University of Cape Town > Rondebosch 7701 > South Africa > > ______________________________________________ > 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ 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.
