> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: Wednesday, March 03, 2004 6:27 PM > To: Peter Dalgaard > Cc: [EMAIL PROTECTED] > Subject: Re: [R] read.spss and time/date information > > > > > On Wed, 3 Mar 2004, Peter Dalgaard wrote: > > > Torsten Hothorn <[EMAIL PROTECTED]> writes: > > > > > Could anyone give me a a hint how I can convert 13264300800 to > > > 2003/02/11 again, please? > > > > > ISOdate(1582,10,14) + 13264300800 > > [1] "2003-02-11 13:00:00 CET" > > > ISOdate(1582,10,14) + 13142476800 > > [1] "1999-04-03 14:00:00 CEST" > > > > [October 14, 1582 is Day 1 of the Gregorian calendar.] > > > > I tried January 1th 1970 as "baseline" but I never would have > dreamed of October 14, 1582.
This is the day the present Gregorian calendar was instituted, replacing the old Julian that did not have leap years. So it is actually quite sensible as it is the earliest possible date that is in unbroken sequence to present times. Actually I am amazed that this has not been chosen as the natural origin for any of the R-pakages... Bendix Carstensen > > Thanks to all responders! > > Torsten > > > -- > > O__ ---- Peter Dalgaard Blegdamsvej 3 > > c/ /'_ --- Dept. of Biostatistics 2200 Cph. N > > (*) \(*) -- University of Copenhagen Denmark Ph: > (+45) 35327918 > > ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: > (+45) 35327907 > > > > ______________________________________________ > [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 > ______________________________________________ [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
