On Thu, Nov 9, 2017 at 1:30 AM, Joe <solarjoe@posteo.org> wrote:
>
> Hello,
>
> I have a question and hope that you can help me.
>
> The doc for vstack mentions that "this function continues to be supported for backward compatibility, but you should prefer np.concatenate or np.stack."
>
> Using vstack was convenient because "the arrays must have the same shape along all but the first axis."
>
> So it was possible to stack an array (3,) and (2, 3) to a (3, 3) array without using e.g. atleast_2d on the (3,) array.
>
> Is there a possibility to mimic that behavior with np.concatenate or np.stack?

Quite frankly, I ignore the documentation as I think it's recommendation is wrong in these cases. Vive la vstack!

--
Robert Kern