On Wed, Feb 8, 2012 at 22:11, Travis Oliphant <tra...@continuum.io> wrote: > > On Feb 8, 2012, at 11:17 AM, josef.p...@gmail.com wrote: > >> On Wed, Feb 8, 2012 at 10:29 AM, Sturla Molden <stu...@molden.no> wrote: >>> On 08.02.2012 15:49, Travis Oliphant wrote: >>> >>>> This sort of thing would take time, but is not out of the question in my >>>> mind because I suspect the number of users and use-cases of "broadcasted" >>>> fancy-indexing is small. >> >> I think I use it quite a bit, and I like that the broadcasting in >> indexing is as flexible as the broadcasting of numpy arrays >> themselves. >> >> x[np.arange(len(x)), np.arange(len(x))] gives the diagonal for example. >> >> or picking a different element from each column, (I don't remember >> where I used that) >> >> It is surprising at first and takes some getting used to, but I think >> it's pretty nice. On the other hand, I always avoid mixing slices and >> indexes because of "strange" results. > > It actually is pretty nice once you understand it. Mixing of fancy indexing > and slicing is only nice in special circumstances. I think we would have > been better off if rather than move the subspace to the beginning of the > array, NumPy raised an error in that case. > > That would be a useful change.
We could start with a warning. See how many people kvetch about it. I don't like removing long-standing, documented features based on suspicions that their user base is small. Our suspicions and intuitions about such things aren't worth much. -- 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 NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
