From Martin Maechler <maechler@stat.math.ethz.ch>  Mon Jan 18 13:53:24 1999
From: Martin Maechler <maechler@stat.math.ethz.ch> (Martin Maechler)
Date: Mon, 18 Jan 1999 14:53:24 +0100
Subject: Some outer() suggestions
In-Reply-To: <Pine.GSO.3.96.990115171305.25543K-101000@laplace> (message from
 Jonathan Rougier on Fri, 15 Jan 1999 17:15:34 +0000 (GMT))
References: <Pine.GSO.3.96.990115171305.25543K-101000@laplace>
Message-ID: <199901181353.OAA04395@sophie.ethz.ch>

Thank you Jonathan, 
for your submitted suggestions.

to have a more generally working (and [dim]names preserving) "outer()"  has
been (some where low) on my todo list, for a while now.

----
Something for all R package / code writers :
	  --------------------------------
When writing  *.Rd files {aka man pages}:
Please use at least one \keyword{...} line at the end
(use a keyword from  R.../doc/KEYWORDS
  ... are these in the Windows version?)
These are important for several indices (and may become more important in
the future).

---
A few more remarks of (half) general interest:

- Concerning "kronecker",  couldn't we use

    %x%

  as an .Alias for the kronecker product (instead of "%kr%" which you proposed)
  Does anyone see a reason against it?

- match.fun() [your new proposal]:

  Why should it give an error [stop()] instead of return NA or NULL or
  something like that when there's no function match ?

Martin
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Some outer() suggestions
Martin Maechler