This isn't the year 2038 problem and workaround #2 won't help because R uses the tm structure, not time_t.
Here's a non-xts example of the issue, which seems to be in as.POSIXct.POSIXlt: x <- "2038-12-31-23-59-59.99999" (y <- strptime(x, "%Y-%m-%d-%H-%M-%OS")) unclass(y) (z <- as.POSIXct(y)) I thought this may have something to do with timezones / daylight saving time, since ?DateTimeClasses says that dates up to 2037 are covered; but setting tz="GMT" doesn't help. (y1 <- strptime(x, "%Y-%m-%d-%H-%M-%OS", tz="GMT")) unclass(y1) (z1 <- as.POSIXct(y1, tz="GMT")) do_asPOSIXct is at line 733 of main/datetime.c, for anyone interested in digging further. Best, -- Joshua Ulrich | about.me/joshuaulrich FOSS Trading | www.fosstrading.com On Wed, Aug 1, 2012 at 6:10 PM, Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote: > http://en.wikipedia.org/wiki/Year_2038_problem > > Workaround 1: Avoid collecting data in the future and processing it in the > present. > > Workaround 2: Use a 64-bit build of R, as appropriate for such future data > sets. > --------------------------------------------------------------------------- > Jeff Newmiller The ..... ..... Go Live... > DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... > Live: OO#.. Dead: OO#.. Playing > Research Engineer (Solar/Batteries O.O#. #.O#. with > /Software/Embedded Controllers) .OO#. .OO#. rocks...1k > --------------------------------------------------------------------------- > Sent from my phone. Please excuse my brevity. > > Marcus Kriele <mkri...@mac.com> wrote: > >>I have the following problem: >> >>As expected I obtain >> timeBasedSeq( 2037/2037) >>[1] "2037-01-01" >>> >>However if I do the same for 2038 I get >>timeBasedSeq( 2038/2038) >>[1] "2038-01-01" "2039-01-01" >> >>I get the same strange result if I use later years or any interval that >>contains 2038: >>timeBasedSeq( 2037/2039) >>[1] "2037-01-01" "2038-01-01" "2039-01-01" "2040-01-01" >>> >> >>Am I doing anything wrong? I am using R2.15.1 und xts 0.8.6 on a mac. >> >>Many thanks, Marcus >> >> >> [[alternative HTML version deleted]] >> >>______________________________________________ >>R-help@r-project.org mailing list >>https://stat.ethz.ch/mailman/listinfo/r-help >>PLEASE do read the posting guide >>http://www.R-project.org/posting-guide.html >>and provide commented, minimal, self-contained, reproducible code. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
