[R] R and kron
Thu, 11 Mar 1999 13:55:44 +0000 (GMT)
On Thu, 11 Mar 1999, Martin Maechler wrote:
> John> And I note the new function kronecker - very useful but can it be
> John> applied to non-numerics as in factors, data frames etc preserving
> John> the class, levels and names?
> Certainly --- if you enhance it;
> Thanks in advance for the contribution... ;-)
kronecker() is actually a wrapper for outer(), so unfortunately you will
have to enhance outer() as well! But I expect an enhanced outer() would
be quite useful.
Jonathan Rougier Science Laboratories
Department of Mathematical Sciences South Road
University of Durham Durham DH1 3LE
"[B]egin upon the precept ... that the things we see are to be
weighed in the scale with what we know" (Meredith, 1879, The Egoist)
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