Try this;
with(x, data.frame(Case = rep(Case, (Endyear - Startyear) + 1),
Year = unlist(mapply(seq, Startyear, Endyear))))
On Tue, Nov 24, 2009 at 4:14 PM, Joseph Magagnoli <jcm...@gmail.com> wrote:
> Hi all,
> I have a dataframe that has one observation per case.
> for example:
>
> Case Startyear Endyear
> A 1979 1989
> B 1950 1955
>
> I would like to create a dataframe in which each case has
> multiple observations corresponding to the start and end year
> for example
>
> Case Year
> A 1979
> A 1980
> A 1981
> . .
> . .
> . .
> A 1989
> B 1950
> B 1951
> and so on
>
>
>
> any help would be greatly appreciated.
>
> Joe
>
> [[alternative HTML version deleted]]
>
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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.
>
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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and provide commented, minimal, self-contained, reproducible code.
