Something like this: > do.call( cbind, rep(list(1:10), 5) ) [,1] [,2] [,3] [,4] [,5] [1,] 1 1 1 1 1 [2,] 2 2 2 2 2 [3,] 3 3 3 3 3 [4,] 4 4 4 4 4 [5,] 5 5 5 5 5 [6,] 6 6 6 6 6 [7,] 7 7 7 7 7 [8,] 8 8 8 8 8 [9,] 9 9 9 9 9 [10,] 10 10 10 10 10
Hope this helps, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of Xu Wang > Sent: Wednesday, February 10, 2010 1:28 PM > To: r-help@r-project.org > Subject: [R] expand the inside of command with rep ? > > > Hi, > > I would like to be able to repeat a string within a command. I think > there > is an easy way but I can not figure out how. > > Here is an example. > > x<-1:15 > I would like to turn this into the following matrix: > xm<-cbind(x,x,x,x,x) > > But I would like to do so by having a command that repeats x within the > cbind command. Does that make sense? I have tried various things mainly > involving the commands "rep" and "paste" but cannot get it. > > cbind(rep('x',times=5)) > > I am guessing that this is not good programming etiquette? Something > seems > off about it. But still, I would like to know how to do it. > > I do understand that I can use a for loop to easily accomplish the > desired > output but am looking for a solution similar to the above syntax. > > Thank you for any ideas, > > Xu Wang > -- > View this message in context: http://n4.nabble.com/expand-the-inside- > of-command-with-rep-tp1476420p1476420.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.