Thanks the aggregate() command is what I was looking for. Chris On Thu, Jul 19, 2012 at 9:03 PM, David L Carlson <dcarl...@tamu.edu> wrote:
> > dtf <- read.table(text="y A B C > + 0 1 1 2 > + 0 1 2 1 > + 1 1 1 2 > + 0 1 1 2 > + 1 1 1 2 > + 1 1 2 1 > + 0 1 2 2", > + header=TRUE) > > dtagroup <- aggregate(y~A+B+C, dtf, sum) > # Gets you the groups. If you need the column/row order: > > > dtagroup <- dtagroup[order(dtagroup$y, decreasing=TRUE),c(4, 1:3)] > > ---------------------------------------------- > David L Carlson > Associate Professor of Anthropology > Texas A&M University > College Station, TX 77843-4352 > > > -----Original Message----- > > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > > project.org] On Behalf Of Christopher Desjardins > > Sent: Thursday, July 19, 2012 7:35 PM > > To: R help > > Subject: [R] Changing ungrouped cases to grouped cases > > > > Hi, > > I have my data the following way: > > > > y A B C > > 0 1 1 2 > > 0 1 2 1 > > 1 1 1 2 > > 0 1 1 2 > > 1 1 1 2 > > 1 1 2 1 > > 0 1 2 2 > > . > > . > > . > > And so on. How can I make my data look like the following: > > y A B C > > 2 1 1 2 > > 1 1 2 1 > > 0 1 2 2 > > . > > . > > . > > > > In other words how can I change my ungrouped cases into grouped cases? > > Thanks! > > Chris > > > > [[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. > > [[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.
