[R] Expand dataframe according to limits defined per row

[Uwe Ligges]

On 07.10.2011 16:02, darkgaze wrote:
> Hi all,
>
> Would appreciate help with transforming this:
>
> A B C D
> a 2 1 4
> b 3 3 5
>
> into this:
>
> A B E
> a 2 1
> a 2 2
> a 2 3
> a 2 4
> b 3 3
> b 3 4
> b 3 5
>
> (C<=E<=D)


do.call(rbind, apply(dat, 1, function(x) data.frame(A=x[1], B=x[2], 
E=seq(x[3], x[4]))))

Uwe Ligges




> Best,
> Don
>
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