On Tue, 10 Feb 2009, pbarros wrote:
Hi all,
I am using ISOdatetime, and I just found out that when I do
ISOdatetime(1995,03,26,2,10,0) (or any other value under minutes or seconds)
I get NA
This does not happen with the same time in other dates, nor with different
hours in the same date.
Any hint why this happens?
A non-existent time, most likely:
x <- ISOdatetime(1995,03,26,1,10,0)
x
[1] "1995-03-26 01:10:00 CET"
seq(x, length=10, by="hour")
[1] "1995-03-26 01:10:00 CET" "1995-03-26 03:10:00 CEST"
[3] "1995-03-26 04:10:00 CEST" "1995-03-26 05:10:00 CEST"
[5] "1995-03-26 06:10:00 CEST" "1995-03-26 07:10:00 CEST"
[7] "1995-03-26 08:10:00 CEST" "1995-03-26 09:10:00 CEST"
[9] "1995-03-26 10:10:00 CEST" "1995-03-26 11:10:00 CEST"
in TZ=Europe/Lisbon, which is my guess as to near where you are
There was no 2:10 on 1995-03-26 in Lisbon: the clocks went forward an
hour at 2 am.
Using R 2.8.1 under ESS/GnuEmacs under Windows XP
Pedro
--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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