365/7 != 52. You have more than 52 weeks in each
year.
--- Lauri Nikkinen <[EMAIL PROTECTED]> wrote:
> R users,
>
> I have a vector of dates
>
> days <- seq(as.Date("2007/1/1"),
> as.Date("2008/1/31"), "days")
>
> and I would like to have week numbers from 1 to 52
> for each year. How
> do I do that? Now I get 00-53 using
>
> format(days, "%W")
>
> > range(format(days, "%W"))
> [1] "00" "53"
>
> I have read "Date and Time Classes in R" (R news
> 01/04 by Gabor
> Grothendieck and Thomas Petzoldt) with no help.
>
> Thanks
> Lauri
>
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained,
> reproducible code.
>
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