Try

my.date <- strptime("20/2/06 11:16:16.683", "%d/%m/%y %H:%M:%OS")

Then you can examine my.date$mon.
--
Robert Tirrell | rpt@stanford.edu | (607) 437-6532
Program in Biomedical Informatics | Butte Lab | Stanford University



On Thu, Feb 24, 2011 at 14:12, Belle <ping.yi@gmail.com> wrote:

>
> I think I got it, I post it here see if you have better way, please let me
> know.
>
> index <- rep(0, length(mydata[,1]))
> index[as.Date(mydata3$Date) < as.Date("2006-11-30 23:29:29 PM") &
> as.Date(mydata3$Date) > as.Date("2006-09-01 00:00:00 AM")] <- 1
> index[as.Date(mydata3$Date) < as.Date("2007-11-30 23:29:29 PM") &
> as.Date(mydata3$Date) > as.Date("2007-09-01 00:00:00 AM")] <- 1
> index[as.Date(mydata3$Date) < as.Date("2008-11-30 23:29:29 PM") &
> as.Date(mydata3$Date) > as.Date("2008-09-01 00:00:00 AM")] <- 1
> index[as.Date(mydata3$Date) < as.Date("2009-11-30 23:29:29 PM") &
> as.Date(mydata3$Date) > as.Date("2009-09-01 00:00:00 AM")] <- 1
> index[as.Date(mydata3$Date) < as.Date("2010-11-30 23:29:29 PM") &
> as.Date(mydata3$Date) > as.Date("2010-09-01 00:00:00 AM")] <- 1
>
> Thanks
> --
> View this message in context:
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> Sent from the R help mailing list archive at Nabble.com.
>
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