Ken Knoblauch wrote:
>
> How about
>
> do.call("expand.grid", rep(list(c("u", "l")), 3))
> Var1 Var2 Var3
> 1 u u u
> 2 l u u
> 3 u l u
> 4 l l u
> 5 u u l
> 6 l u l
> 7 u l l
> 8 l l l
>
>
... which can now be nicely generalized and abstracted as
expand.grid.rep = function(x, n=1) do.call(expand.grid, rep(list(x),n))
expand.grid.rep(c("u","l"), 3)
vQ
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