[R] getting ISO week

Hans W. Borchers hwborchers at gmail.com
Thu Dec 11 21:01:34 CET 2008

Gabor Grothendieck <ggrothendieck <at> gmail.com> writes:

> According to the definition in ?strptime (which is not the same as the
> ISO definition):
> format(x, "%W") returns
> "Week of the year as decimal number (00–53) using Monday as the first
> day of week (and typically with the first Monday of the year as day 1
> of week 1). The UK convention."
> The first day of 2008 is a Tuesday which means that 2008 starts in week 0.

Yes I read that but it is still misleading and -- I think -- incorrect. 
See <www.dateandtime.org/calendar> to find out that this is week 50 even 
in the UK.
We would have had a lot of misplaced business meetings in our company if 
the week numbers in Great Britain, Germany, and Sweden would actually be 

Hans Werner

> >>
> >> ... [rest deleted]
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