March 2, 2009
6:58 a.m.
On Mon, Mar 2, 2009 at 00:50, Stephen Simmons <mail@stevesimmons.com> wrote:
Hi,
Can anyone help me out with a simple way to vectorize this loop?
# idx and vals are arrays with indexes and values used to update array data # data = numpy.ndarray(shape=(100,100,100,100), dtype='f4') flattened = data.ravel() for i in range(len(vals)): flattened[idx[i]]+=vals[i]
flattened[idx] = vals -- 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