Hi! Am 08.06.2010 um 18:24 schrieb Andreas Hilboll: > I have an array idx, which holds int values and has a 2d shape. All > values inside idx are 0 <= idx < n. And I have a second array times, > which is 1d, with times.shape = (n,). > > Out of these two arrays I now want to create a 2d array having the same > shape as idx, and holding the values contained in times, as indexed by > idx.
Funny, that's exactly what I wanted to do (idx being a label/region image here), and what I tried today. You will be happy to hear that the even simpler solution is to just use fancy indexing (the name is justified here): times[idx] will do the trick, too - no nead to flatten & reshape at all! :-) (Given that both are ndarrays of course.) HTH, Hans _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
