This isn't a single command but its pretty short:
unstack(stack(L)[2:1])
On Feb 6, 2008 5:51 PM, hadley wickham <[EMAIL PROTECTED]> wrote:
> Is there a built in function to invert a list? i.e. to go from
>
> list(
> a = c("1", "2", "3"),
> b = c("1"),
> d = c("2", "4")
> )
>
> to
>
> list(
> "1" = c("a", "b"),
> "2" = c("a", "d"),
> "3" = "a",
> "4" = "2"
> )
>
> Hadley
>
> --
> http://had.co.nz/
>
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