Re: [R] Problem with as.POSIXct on dates object

2009-07-20 Thread Gabor Grothendieck
On Mon, Jul 20, 2009 at 5:16 AM, Denis Chabot wrote: > Hi, > > if you look at my example in recent thread "Rép : [R] problem with > as.POSIXct and daylight savings time", it appears that tz argument is used > by as.POSIX.ct > > Denis Chabot > Le 09-07-20 à 00:00, Remko Duursma a écrit : > >>> as.PO

Re: [R] Problem with as.POSIXct on dates object

2009-07-20 Thread Denis Chabot
Hi, if you look at my example in recent thread "Rép : [R] problem with as.POSIXct and daylight savings time", it appears that tz argument is used by as.POSIX.ct Denis Chabot Le 09-07-20 à 00:00, Remko Duursma a écrit : as.POSIXct.dates does not make use of tz: Ok, but it is supposed to,

Re: [R] Problem with as.POSIXct on dates object

2009-07-19 Thread Remko Duursma
> as.POSIXct.dates does not make use of tz: Ok, but it is supposed to, right? Or maybe the documentation can be updated, because ?as.POSIXct does seem to imply the timezone is used (as it is for other methods of as.POSIXct). thanks, Remko - Remk

Re: [R] Problem with as.POSIXct on dates object

2009-07-19 Thread Gabor Grothendieck
as.POSIXct.dates does not make use of tz: > as.POSIXct.dates function (x, ...) { if (inherits(x, "dates")) { z <- attr(x, "origin") x <- as.numeric(x) * 86400 if (length(z) == 3L && is.numeric(z)) x <- x + as.numeric(ISOdate(z[3L], z[1L], z[2L],

[R] Problem with as.POSIXct on dates object

2009-07-19 Thread Remko Duursma
Dear R-helpers, I have a problem converting an object made with the 'chron' function to a POSIXct object: # Make date based on DOY dat <- chron(dates=232, origin.=c(month=1, day=1, year=2008)) dat #[1] 08/20/08 # Converting to POSIXct uses current timezone (Sydney): as.POSIXct(dat) #[1] "2008-