as.POSIXct(518400,origin='2001-01-01') [1] "2001-01-07 PST"
as.POSIXct(as.numeric(as.POSIXct(518400,origin='2001-01-01')),origin='1970-01-01') [1] "2001-01-07 08:00:00 PST" On Wed, Aug 24, 2011 at 9:22 AM, Agustin Lobo <agustin.l...@ija.csic.es>wrote: > Hi! > > I'm confused by this: > > as.numeric(as.POSIXct(518400,**origin="2001-01-01")) > [1] 978822000 > > I guess the problem is that as.numeric() assumes a different origin, but > cannot find > any default origin. > > How can I get back the seconds from the POSIXct format? In other words, > which the inverse function of as.POSIXct()? > I've tried as.numeric and unclass() using a origin= argument, but this does > not work. > > Thanks > > Agus > > -- > Dr. Agustin Lobo > Institut de Ciencies de la Terra "Jaume Almera" (CSIC) > LLuis Sole Sabaris s/n > 08028 Barcelona > Spain > Tel. 34 934095410 > Fax. 34 934110012 > email: agustin.l...@ija.csic.es > > ______________________________**________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help> > PLEASE do read the posting guide http://www.R-project.org/** > posting-guide.html <http://www.R-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > [[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.
