On Mon, Mar 2, 2009 at 13:10, David Warde-Farley <d...@cs.toronto.edu> wrote: > On 2-Mar-09, at 12:25 PM, Robert Kern wrote: > >> a[[2,3,6], ...][..., [3,2]] >> >> You're doing fancy indexing, so there are copies both times. > > D'oh! > > So I guess the only way to avoid the second copy is to do what Jon > initially suggested, i.e. a[ix_([2,3,6],range(a.shape[1]),[3,2])] ? > > I suppose xrange would be better than arange() or range() as it > wouldn't create and destroy the list all at once.
I believe an array would be created from it, so arange() would be the "best" bet there. But really, the difference is so trivial. -- 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://projects.scipy.org/mailman/listinfo/numpy-discussion
