Re: [Numpy-discussion] Create a n-D grid; meshgrid alternative

Hello,

indeed I was looking for the cartesian product.

I timed the two stackoverflow answers and the winner is not quite as clear:

n_elements: 10 cartesian 0.00427 cartesian2 0.00172 n_elements: 100 cartesian 0.02758 cartesian2 0.01044 n_elements: 1000 cartesian 0.97628 cartesian2 1.12145 n_elements: 5000 cartesian 17.14133 cartesian2 31.12241

(This is for two arrays as parameters: np.linspace(0, 1, n_elements)) cartesian2 seems to be slower for bigger.

I'd really appreciate if this was be part of numpy. Should I create a pull request?

Regarding combinations and permutations: I could be convenient to have as well.

Cheers, Stefan