Hi Dimitris, Thanks for your reply. But this is not exactly what i am after. I want to find the probes that falls into certain regions. In your solution it will ignore the second probe if it falls into the same region as the first one. Is there any vector trickb uilt in R to find whether probes fall into certain regions? best, salih
On Fri, Jun 24, 2011 at 10:23 AM, Dimitris Rizopoulos < d.rizopou...@erasmusmc.nl> wrote: > One approach is the following: > > x <- rnorm(5) > y <- matrix(rnorm(5*2), 5, 2) > > check <- y - x > check[, 1] * check[, 2] < 0 > > > I hope it helps. > > Best, > Dimitris > > > > On 6/24/2011 10:57 AM, Salih Tuna wrote: > >> Hi All, >> What is the fastest way of finding if any members of vector x fall in the >> range of the rows of matrix y? >> I do not want to use two for loops as this will take forever. >> Any help will be appreciated, >> best, >> salih >> >> [[alternative HTML version deleted]] >> >> ______________________________**________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help> >> PLEASE do read the posting guide http://www.R-project.org/** >> posting-guide.html <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 > Web: > http://www.erasmusmc.nl/**biostatistiek/<http://www.erasmusmc.nl/biostatistiek/> > [[alternative HTML version deleted]] ______________________________________________ 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.
