Hmmm works fine for me. xts(1, order.by = strptime("04/05/87 2:00",format="%m/%d/%y %H:%M"))
[,1] 1987-04-05 02:00:00 1 Maybe an old version of xts? I am using xts version 0.8-0. (you can check that with sessionInfo().) Regards, Wolfgang Wu ----- Ursprüngliche Message ----- Von: Dan Potter <arsanalyt...@gmail.com> An: r-sig-finance@r-project.org Cc: Gesendet: 12:51 Freitag, 23.September 2011 Betreff: [R-SIG-Finance] xts NA date for Hello All, I am new to R and having an issue with xts when I try and used it with certain dates and times in 1987. Example > # This date and time works > xts(1, order.by = strptime("04/05/87 12:00",format="%m/%d/%y %H:%M")) [,1] 1987-04-05 12:00:00 1 # This date and time do not work > xts(1, order.by = strptime("04/05/87 2:00",format="%m/%d/%y %H:%M")) [,1] <NA> 1 I don't think the issue is with strptime since it seems to work fine on the offending date and time, i.e. > strptime("04/05/87 02:00",format="%m/%d/%y %H:%M") [1] "1987-04-05 02:00:00" Any suggestion or work arounds would be appreciated. Thanks, Dan _______________________________________________ R-SIG-Finance@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-sig-finance -- Subscriber-posting only. If you want to post, subscribe first. -- Also note that this is not the r-help list where general R questions should go. _______________________________________________ R-SIG-Finance@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-sig-finance -- Subscriber-posting only. If you want to post, subscribe first. -- Also note that this is not the r-help list where general R questions should go.