Sun, 12 Apr 1998 16:57:34 +0200 (CEST)
>>>>> Thomas Lumley writes:
> Implementing 0-extent matrices turns out to be easy -- it's almost
> entirely a matter of removing the tests for 0. There seems to be only one
> thing that may require special-case handling, but I'm not sure what the
> Right Thing to do is.
> If m is a 0x4 matrix, say, what should 2*m, 2+m and so on return?
> Since m+m is a 0x4 matrix but 2*as.vector(m) is NA we can't have complete
> consistency. My preference is for these operations to happen elementwise
> -- ie m+m is a 0x4 matrix. Comments?
Sounds very much like going the Octave/MATLAB way. I thought we'd
eventually have a `Matrix' class for such things?
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