Try this:

format(seq(as.Date("2008-07-01"),as.Date("2009-06-30"),by="week"), "%d/%m")

On Sat, Jul 24, 2010 at 6:07 PM, Felipe Carrillo
<mazatlanmexico@yahoo.com>wrote:

> Hi:
> I have a dataframe named 'spring' and I am trying to add a new variable
> named
> 'IdDate'
> This line of code works fine:
> spring$idDate <- seq(as.Date("2008-07-01"),as.Date("2009-06-30"),by="week")
>
> But I don't want to hardcode the year because it will be used again the
> following year
> Is it possible to just generate dates with the month and day?
>
> I tried the code below:
> seq(as.Date("7-1","%B%d"),as.Date("6-30","%B%d"),by="week")
>
> and got this error message:
> Error in seq.int(0, to - from, by) : 'to' must be finite
> Thanks for any pointers
>
>
> Felipe D. Carrillo
> Supervisory Fishery Biologist
> Department of the Interior
> US Fish & Wildlife Service
> California, USA
>
>
>
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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