Thank you Gabriel, I agree that new behaviour makes much more sense. Just wanted to confirm before resolving compatibility of my unit tests. Best, Jan
On Wed 18 Dec, 2019, 10:46 PM Gabriel Becker, <gabembec...@gmail.com> wrote: > Jan, > > That is an intentional change as you can see in the documentation for > head/tail in R-devel. Last time I discussed it with Martin, this behavior > was desired and thus is unlikely to change unless "our" (ie his) mind does. > > The hope is that the new behavior is actually what people would want (note > it already behaves this way for data.frames and for matrices, which are now > explicitly array objects with 2 dimensions as well as classed as matrices, > so its more consistent now, and more reasonable for the object). > > Best, > ~G > > On Wed, Dec 18, 2019 at 2:44 AM Jan Gorecki <j.gore...@wit.edu.pl> wrote: > >> Hi R-devel community, >> >> I am aware of changes in R-devel in head/tail methods but I was not >> expecting that to be a breaking change. >> >> # R 3.6.1 >> ar = array(1:27, c(3,3,3)) >> tail(ar, 1) >> #[1] 27 >> >> The current output of R-devel is something that I would expect from a >> >> tail(ar, c(1, Inf, Inf)) >> >> or >> >> tail(ar, c(1, NA, NA)) >> >> calls. >> Is it going to stay like this or there are plans to mitigate this >> breaking change? >> >> # R-devel 2019-12-17 r77592 >> ar = array(1:27, c(3,3,3)) >> tail(ar, 1) >> #, , 1 >> # >> # [,1] [,2] [,3] >> #[3,] 3 6 9 >> # >> #, , 2 >> # >> # [,1] [,2] [,3] >> #[3,] 12 15 18 >> # >> #, , 3 >> # >> # [,1] [,2] [,3] >> #[3,] 21 24 27 >> >> Best, >> Jan Gorecki >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel >> > [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel