By the way, it would be nice if the breaks argument accepted the word "quarter" directly since its quite a common break to need when using dates.
On Tue, Mar 18, 2008 at 2:29 PM, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > I am using > > [1] "R version 2.6.2 alpha (2008-01-26 r44181)" > > and also get the same under: > > "R version 2.7.0 Under development (unstable) (2008-03-13 r44752)" > > > On Tue, Mar 18, 2008 at 2:09 PM, Roger D. Peng <[EMAIL PROTECTED]> wrote: > > Seems it did work as advertised in R 2.6.0 but is still broken in R-devel. > > Will > > take a look. > > > > -roger > > > > > > Gabor Grothendieck wrote: > > > cut.Date and cut.POSIXt indicate that the breaks argument > > > can be an integer followed by a space followed by "year", etc. > > > but it seems the integer is ignored. > > > > > > For example, I assume that breaks = "3 months" is supposed > > > to cut it into quarters but, in fact, it cuts it into months as if > > > 3 had not been there. > > > > > >> d <- seq(Sys.Date(), length = 12, by = "month") > > >> cut(d, "3 months") > > > [1] 2008-03-01 2008-04-01 2008-05-01 2008-06-01 2008-07-01 2008-08-01 > > > 2008-09-01 2008-10-01 2008-11-01 2008-12-01 2009-01-01 2009-02-01 > > > Levels: 2008-03-01 2008-04-01 2008-05-01 2008-06-01 2008-07-01 > > > 2008-08-01 2008-09-01 2008-10-01 2008-11-01 2008-12-01 2009-01-01 > > > 2009-02-01 > > >> cut(as.POSIXct(d), "3 months") > > > [1] 2008-03-01 2008-04-01 2008-05-01 2008-06-01 2008-07-01 2008-08-01 > > > 2008-09-01 2008-10-01 2008-11-01 2008-12-01 2009-01-01 2009-02-01 > > > Levels: 2008-03-01 2008-04-01 2008-05-01 2008-06-01 2008-07-01 > > > 2008-08-01 2008-09-01 2008-10-01 2008-11-01 2008-12-01 2009-01-01 > > > 2009-02-01 > > >> cut(as.POSIXlt(d), "3 months") > > > [1] 2008-03-01 2008-04-01 2008-05-01 2008-06-01 2008-07-01 2008-08-01 > > > 2008-09-01 2008-10-01 2008-11-01 2008-12-01 2009-01-01 2009-02-01 > > > Levels: 2008-03-01 2008-04-01 2008-05-01 2008-06-01 2008-07-01 > > > 2008-08-01 2008-09-01 2008-10-01 2008-11-01 2008-12-01 2009-01-01 > > > 2009-02-01 > > > > > > ______________________________________________ > > > R-devel@r-project.org mailing list > > > https://stat.ethz.ch/mailman/listinfo/r-devel > > > > > > > -- > > Roger D. Peng | http://www.biostat.jhsph.edu/~rpeng/ > > > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
