The poster asked for row major representation, not column major representation.
Matrices **are** vectors -- stored in column major order. Try: cat(x,"\n") ## versus... cat(t(x),"\n") The tabular printout occurs because the print() method for a matrix object (more generally any array) prints the matrix (a vector with a dim attribute) in an appropriate way. However you can manipulate the matrix **as** a vector, and in most circumstances, the dim attribute will be preserved so it will remain a matrix object. Please read "An Introduction to R," ?methods and ?print (at least) for details. R will always be arcane to those who do not make a serious effort to learn it. It is **not** meant to be intuitive and easy for casual users to just plunge into. It is far too complex and powerful for that. But the rewards are great for serious data analysts who put in the effort. Bert Gunter Genentech Nonclinical Statistics -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Henrique Dallazuanna Sent: Monday, August 06, 2007 7:33 AM To: Niccolò Bassani Cc: r-help@stat.math.ethz.ch Subject: Re: [R] Create vectors form matrices Try: dim(matrix) <- NULL -- Henrique Dallazuanna Curitiba-Parana-Brasil 250 25' 40" S 490 16' 22" O On 06/08/07, Niccolr Bassani <[EMAIL PROTECTED]> wrote: > > Hi, dear R users. I've a kind of stupid question, I hope you can provide > some help! > The topic here's really simple: vectors and matrices. > I have a matrix (616 rows x 22 cols) filled with numbers and NAs; > something > like this: > > 1 2 3 4 5 6 NA NA NA NA ........ > 1 2 3 4 NA NA NA NA NA ......... > .................................................. > ................................................ > > What I'm trying to do is to put all the rows on a unique row, so to have > something like this: > > 1 2 3 4 5 6 NA NA NA NA ........1 2 3 4 NA NA NA NA NA > ......... > > and so on. The matter is that whatever I try, I just get something like > this: > > 1 1 1 1 1 1 1 1 .........................2 2 2 2 2 2 2 2 2 ...... > > Obviously, this is not what required. I've tried to concatenate, I've > built > a for cicle, but nothing seems to produce what I want. Sorry for the dumb > question, but I'm almost sure I need holidays... > Thanks in advance! > niccolr > > [[alternative HTML version deleted]] > > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > > [[alternative HTML version deleted]] ______________________________________________ R-help@stat.math.ethz.ch 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.
