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.eswrote:
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
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