[Numpy-discussion] Incrementing with advanced indexing: why don't repeated indexes repeatedly increment?

Robert Kern robert.kern at gmail.com
Wed Jun 6 12:35:28 EDT 2012

On Wed, Jun 6, 2012 at 4:52 PM, Robert Cimrman <cimrman3 at ntc.zcu.cz> wrote:

> Yes (in that thread), but it applies also adding/assembling vectors into a
> global vector - this is just x[idx] += vals. I linked that discussion as that
> was recent enough for me to recall it, but there were other.
> Anyway, my point was that a having a function with the "adding" semantics in
> NumPy would be handy.

x += numpy.bincount(idx, vals, minlength=len(x))

Robert Kern

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