[R] How to get last day of a month?

[Gabor Grothendieck]

Try this:

> library(zoo) # as.yearqtr
>
> # test data
> x <- c("sep2009", "oct2009")
>
> # convert to "yearqtr" class and from that to Date using frac = 1
> # where frac is between 0 and 1 inclusive indicating where
> # in the month the output date should be set to
>
> as.Date(as.yearqtr(x, "%b%Y"), frac = 1)
[1] "2009-09-30" "2009-12-31"

On Sun, Sep 13, 2009 at 2:18 PM, megh <megh700004 at yahoo.com> wrote:
>
> Is there any R function to calculate automatically the last day of a
> particular month? For example "sep2009" should be converted to last day of
> September of 2009?
>
> Thanks
> --
> View this message in context: http://www.nabble.com/How-to-get-last-day-of-a-month--tp25425645p25425645.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at 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.
>