[Numpy-discussion] howto apply-along-axis?

Sergio Pascual sergio.pasra@gmail....
Sun Mar 24 16:46:56 CDT 2013


This is the closer I got to do what you say

http://numpy-discussion.10968.n7.nabble.com/Reductions-with-nditer-working-only-with-the-last-axis-td8157.html

Converts a 3D to 2D, but only works in the last axis. Any improvement would
be welcomed.ç




2013/3/22 Neal Becker <ndbecker2@gmail.com>

> I frequently find I have my 1d function that performs some reduction that
> I'd
> like to apply-along some axis of an n-d array.
>
> As a trivial example,
>
> def sum(u):
>   return np.sum (u)
>
> In this case the function is probably C/C++ code, but that is irrelevant (I
> think).
>
> Is there a reasonably efficient way to do this within numpy?
>
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