Outer Addition?

[Max]

Hi,

I'm attempting to translate some numpy code into breeze code (I'm proficient in neither) and I'm currently struggling to replicate the broadcasting behaviour of adding a vector with a 1d array in numpy.

In numpy if I have a vector of shape (3,) and a (3,1) array and I use the + operator, I end up with a 3x3 array apparently due to its implicit broadcasting behaviour.

But does Breeze support this kind of broadcasting? I've been playing around trying to get the same kind of behaviour, but I think something is lacking.

Thanks for any help,

Max.

[David Hall]

yeah, breeze broadcasting doesn't like that (it should be a(::, *) + a(*, ::))

But you can always do: val mat = DenseMatrix.tabulate(3,3)((i,j) => a1(i) + a2(j)) or whatever

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[Max]

Awesome - thanks David.