On Wed, May 19, 2004 at 03:24:38PM -0400, [EMAIL PROTECTED] wrote: > I am trying to use POSIX datetime objects rather than chron datetime > objects but am having difficulty with POSIX in a time series. My > question: Once a POSIXct vector is bound to a time series, is there a > function to convert back to POSIXct? The following code demonstrates > what I am trying to do. > > > ts(as.POSIXct(strptime(tmp,"%m/%d/%Y %H:%M:%S")),freq=1440) > Time Series: > Start = c(1, 1) > End = c(1, 10) > Frequency = 1440 > [1] 1074022572 1074022632 1074022693 1074022753 1074022813 1074022874 > 1074022934 1074022994 1074023055 1074023115 > attr(,"tzone") > [1] ...
for the reverse process, something like.... ## UNTESTED! yourts <- ts(as.POSIXct(strptime(tmp,"%m/%d/%Y %H:%M:%S")),freq=1440) ISOdate(1970,1,1,0,0,0,UTC) + time(yourts) Cheers Jason -- Indigo Industrial Controls Ltd. http://www.indigoindustrial.co.nz 64-21-343-545 [EMAIL PROTECTED] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
