ifelse returns the "shape" of the first argument In your ifelse the shape of "3 > 2" is a vector of length one, so it will return a vector length one.
Avoid "ifelse" until you are very comfortable with it. It can often burn you. On Wed, Dec 13, 2017 at 5:33 PM, jeremiah rounds <roundsjerem...@gmail.com> wrote: > ifelse is vectorized. > > On Wed, Dec 13, 2017 at 7:31 AM, Jinsong Zhao <jsz...@yeah.net> wrote: > > > Hi there, > > > > I don't know why the following codes are return different results. > > > > > ifelse(3 > 2, 1:3, length(1:3)) > > [1] 1 > > > if (3 > 2) 1:3 else length(1:3) > > [1] 1 2 3 > > > > Any hints? > > > > Best, > > Jinsong > > > > ______________________________________________ > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide http://www.R-project.org/posti > > ng-guide.html > > and provide commented, minimal, self-contained, reproducible code. > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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 -- To UNSUBSCRIBE and more, see 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.
