On 10-10-2012, at 16:15, Poizot Emmanuel <emmanuel.poi...@cnam.fr> wrote:
> Dear all, > > I have two coordinates vectors, say X and Y of length n. > I want to generate for each couple of coordinates X1,Y1 X2,Y2 X3,Y3....Xn,Yn > a random coordinate which is located in a square define as X +/- dx and Y +/- > dy. > I saw the runif function which can generate for just one value at a time what > I want : runif(1, X - dx, X + dx) for X and runif(1, Y - dy, Y + dy) for Y. > I would like to know if there is not a more powerfull way in R to generate > directly the set of random coordinates. Yes there is. Just do ?runif to get help on runif. Berend ______________________________________________ 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.
