Mod Rolf's question, the answer probably is: do nothing -- it already **is** a single column.
If you read the section on arrays and matrices in "An Intro to R" *carefully* (this is part of every standard R distro) you will be enlightened. Have you read it? If not, why not? If mat is your matrix, c(mat) may also be enlightening. -- Bert On Mon, Feb 27, 2012 at 1:42 PM, Rolf Turner <rolf.tur...@xtra.co.nz> wrote: > On 27/02/12 20:57, ali_protocol wrote: >> >> Dear all, >> >> Newbie: What is the fastest way to combine all columns of a matrix to one >> column? > > > What (on earth!) do you mean by ``combine''? *You* understand > what you mean; I doubt that anyone else does. For Pete's sake, if > you are going to ask a question, make it clear what the <expletive > deleted> you are asking! > > A self-contained reproducible example always helps. > > cheers, > > Rolf Turner > > ______________________________________________ > 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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.