Another option (better or worse probably depends on many things) is to use:
b <- head(a, -1) On Wed, Dec 12, 2012 at 1:14 AM, e-letter <inp...@gmail.com> wrote: > On 12/12/2012, Daniel Nordlund <djnordl...@frontier.com> wrote: > >> -----Original Message----- > >> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org > ] > >> On Behalf Of e-letter > >> Sent: Tuesday, December 11, 2012 11:45 PM > >> To: r-help@r-project.org > >> Subject: [R] remove last row of a data frame > >> > >> Readers, > >> > >> For a data set 'a': > >> > >> 1 > >> 2 > >> 3 > >> 4 > >> > >> Please what is the syntax to remove the last row and create a new object > >> 'b': > >> > >> 1 > >> 2 > >> 3 > >> > >> Thanks. > >> > > > > If by data set a you mean a data frame called a, then something like this > > should work: > > > > b <- a[-nrow(a),] > > > > If you haven't already read the manual, "An Introduction to R", that > ships > > with every copy of R, then now is the time. > > > > Thanks, couldn't find quickly the relevant section in the html > document, but within R, the command 'nrow' is relevant. > > ______________________________________________ > 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 [[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.
