It worked perfectly. Thank you! On Wed, Dec 30, 2009 at 12:21 PM, Henrique Dallazuanna <www...@gmail.com>wrote:
> Try this: > > unique(x)[rep(1:nrow(unique(x)), m),] > > > On Wed, Dec 30, 2009 at 2:35 PM, <farida...@gmail.com> wrote: > > Dear All, > > > > I have a matrix like X and need to create a new matrix based on the > vector > > m which gives the number of replicates for each unique row. The resulting > > matrix should look like y. > > > >> x > > x1 x2 > > [1,] 2 0.5 > > [2,] 2 0.5 > > [3,] 2 0.5 > > [4,] 6 1.0 > > [5,] 6 1.0 > > [6,] 6 1.0 > > [7,] 1 1.5 > > [8,] 1 1.5 > > [9,] 1 1.5 > > [10,] 4 2.0 > > [11,] 4 2.0 > > [12,] 3 2.5 > > [13,] 3 2.5 > > [14,] 3 2.5 > > > > > > m<-c(1,1,3,1,2) > > > >> y > > y1 y2 > > [1,] 2 0.5 > > [2,] 6 1.0 > > [3,] 1 1.5 > > [4,] 1 1.5 > > [5,] 1 1.5 > > [6,] 4 2.0 > > [7,] 3 2.5 > > [8,] 3 2.5 > > > > can anyone suggest the best way to do this? > > > > Many thanks in advance, > > > > > > Farida > > > > [[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. > > > > > > -- > Henrique Dallazuanna > Curitiba-Paraná-Brasil > 25° 25' 40" S 49° 16' 22" O > [[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.
