A general solution if you always want 2 columns and the pattern is always every other column (but the number of total columns could change) would be:
cbind( c(Dat[,c(TRUE,FALSE)]), c(Dat[,c(FALSE,TRUE)]) ) On Sat, Mar 3, 2012 at 11:40 AM, David Winsemius <dwinsem...@comcast.net> wrote: > > On Mar 3, 2012, at 11:02 AM, Bogaso Christofer wrote: > >> Hi all, let say I have following matrix: >> >> >> >>> Dat <- matrix(1:30, 5, 6); colnames(Dat) <- rep(c("Name1", "Names2"), 3) >> >> >>> Dat >> >> >> Name1 Names2 Name1 Names2 Name1 Names2 >> >> [1,] 1 6 11 16 21 26 >> >> [2,] 2 7 12 17 22 27 >> >> [3,] 3 8 13 18 23 28 >> >> [4,] 4 9 14 19 24 29 >> >> [5,] 5 10 15 20 25 30 >> >> >> >>> From this matrix, I want to create another matrix with 2 columns for >>> "Name1" >> >> and "Name2". Therefore, my final matrix will have 2 columns and 15 rows. >> Is >> there any direct R function to achieve this? >> > > rbind(Dat[,1:2], Dat[,3:4], Dat[,5:6]) > >> [[alternative HTML version deleted]] > > > Bogaso; > > It is really long past due for you to learn how to send plain text messages > from your mailer. > > -- > > David Winsemius, MD > West Hartford, CT > > ______________________________________________ > 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. -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.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.