Thanks - that is exactly what I was looking for Rainer
On Fri, Mar 14, 2008 at 1:10 PM, Henrique Dallazuanna <[EMAIL PROTECTED]> wrote: > 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 > -- 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.
