That does seem like it should work well if len(unique(idx)) is close to len(x). Thanks!

On Wed, Jun 6, 2012 at 9:35 AM, Robert Kern <robert.kern@gmail.com> wrote:
On Wed, Jun 6, 2012 at 4:52 PM, Robert Cimrman <cimrman3@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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