[R] multi-dimensional hash

[Arne.Muller@aventis.com]

Hello,

I was wondering what's the best data structure in R for a multi-dimensional
lookup table, and how to implement it. I've several categories say "A", "B",
"C" ... and within each of these categories there are other categories such
as "a", "b", "c", ... . There can be up to 5 dimensions. The actual value for
[A][a]... is then a vector.

	I'm looking forward to any suggestions,
	+thanks very much for your help,

	Arne