[Rd] all.equal doesn't work for POSIXlt objects
Kurt Hornik
Kurt.Hornik at wu.ac.at
Mon Aug 8 08:07:23 CEST 2011
>>>>> Joris Meys writes:
This is already fixed in r-devel.
-k
> Hi all,
> following sample code illustrates the problem :
> Date1 <- Date2 <-
> as.POSIXlt(seq.Date(as.Date("2010-04-01"),as.Date("2011-04-01"),by='day'))
> identical(Date1,Date2)
> all.equal(Date1,Date2)
> identical() gives the correct answer. As there is no all.equal method
> for POSIXlt objects, all.equal.list is used instead. Subsetting using
> [[]] doesn't work on POSIXlt objects. I solved the problem by adding a
> function all.equal.POSIXlt() :
> all.equal.POSIXlt <- function(target, current, ..., scale=1) {
> check_tzones(target, current)
> target <- unclass(target)
> current <- unclass(current)
> NextMethod("all.equal.list")
> }
> This seems to work bugfree, but I'm not sure about it. So am I doing
> it correct, and if so, can this be added to the next R release? I'm
> not sure where else I should drop this proposal...
> Cheers
> Joris
> --
> Joris Meys
> Statistical consultant
> Ghent University
> Faculty of Bioscience Engineering
> Department of Applied mathematics, biometrics and process control
> tel : +32 9 264 59 87
> Joris.Meys at Ugent.be
> -------------------------------
> Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
More information about the R-devel
mailing list