is this what you want? head(yourdataset,20) Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA
----- Original Message ---- > From: Louis Plough <lplo...@usc.edu> > To: r-help@r-project.org > Sent: Mon, November 1, 2010 12:40:19 PM > Subject: [R] how to view the top 20 lines in a long dataset > > Hi, > I am simply looking for the function that will allow you to look at the top > 20 lines of a long dataset? > > LP > > > On Mon, Nov 1, 2010 at 10:46 AM, Louis Plough <lplo...@usc.edu> wrote: > > > Hi, > > I am trying to generate all possible permutations (choose 2) of a vector, > > b, for example--using 'combn' the combinations in only one direction are > > generated... > > > > > b<-c(.1,.2,.3) > > > combn(b,2) > > [,1] [,2] [,3] > > [1,] 0.1 0.1 0.2 > > [2,] 0.2 0.3 0.3 > > > > [1,] 0.1 0.2 0.3 0.2 0.3 0.3 These > > should also be there. > > [2,] 0.1 0.2 0.3 0.1 0.1 0.2 > > > > Is there another R function that can do this?? > > > > Thanks, > > Louis > > > > [[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. > ______________________________________________ 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.