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
[email protected]
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