Re: Making bsxfun automatic

[fork]

John W. Eaton <jwe <at> octave.org> writes:

> Currently, if you screw up the dimensions with .*, you get an error.
> With your proposed change, you could end up with incorrect results and
> no warning about it at all.

The operator could throw an error if the dimensions don't match in a reasonable
way (I think this what numpy does, but I think SPLUS/R recycles and forces a
match, dropping leftovers -- not good)

For example:

A = [1 2 3
     4 5 6]
B = [10 20 30]

So A .* B would yield [10 20 90; 40 100 180] (multiplying "down", over the
singleton dimension), but A .* B' would throw an error.