On Fri, Jun 11, 2010 at 22:06, <[email protected]> wrote: > Hi all, > > I recently needed to a simple array procedure that I assumed would be > supported (and almost is) but was surprised to find some limitations. > > I've got two arrays, A and B, and some array of indices, I, and I want to > perform the operation > > A[I] += B > > where I and B have the same dimensions. > > This works fine provided there are no repeated indices in I, but otherwise > only the last of each repeated index is used. I've written a C function I > call PutSum that does what I want, but I figured there must something > already lying around. Is there?
numpy.bincount() -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
