On Fri, 26 Aug 2005, David James wrote:
I create a zooreg object that runs from Jan-1-2002 0:00 to Jun-1-2005
0:00...
regts.start = ISOdatetime(2002, 1, 1, hour=0, min=0, sec=0, tz=)
regts.end = ISOdatetime(2005, 6, 1, hour=0, min=0, sec=0, tz=)
regts.zoo - zooreg( NA, regts.start, regts.end, deltat=3600 )
Upon inspection:
regts.zoo[1:3]
2002-01-01 00:00:00 2002-01-01 01:00:00 2002-01-01 02:00:00
NA NA NA
regts.zoo[29926:29928]
2005-05-31 22:00:00 2005-05-31 23:00:00 2005-06-01 00:00:00
NA NA NA
However:
summary(regts.zoo)
Error in row.names-.data.frame(`*tmp*`, value = c(2002-01-01
00:00:00, :
duplicate 'row.names' are not allowed
I don't understand why it claims that there are duplicate row.names.
Any advice?
I probably could use the aggregate function to clean this up, but I
don't see why it should be needed (provided that I do things properly
in the first place).
This is a bug in the zoo package, so please raise it with the maintainer.
Hint: incrementing through a DST change in hourly intervals will result in
duplicate time labels, as in
[24811] 2004-10-30 19:00:00 BST 2004-10-30 20:00:00 BST
[24813] 2004-10-30 21:00:00 BST 2004-10-30 22:00:00 BST
[24815] 2004-10-30 23:00:00 BST 2004-10-31 00:00:00 BST
[24817] 2004-10-31 01:00:00 BST 2004-10-31 01:00:00 GMT
[24819] 2004-10-31 02:00:00 GMT 2004-10-31 03:00:00 GMT
[24821] 2004-10-31 04:00:00 GMT 2004-10-31 05:00:00 GMT
[24823] 2004-10-31 06:00:00 GMT 2004-10-31 07:00:00 GMT
[24825] 2004-10-31 08:00:00 GMT 2004-10-31 09:00:00 GMT
--
Brian D. Ripley, [EMAIL PROTECTED]
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, UKFax: +44 1865 272595
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