On Tue, Jul 23, 2013 at 10:36 AM, Pauli Virtanen <p...@iki.fi> wrote:
> 23.07.2013 19:22, Charles R Harris kirjoitti: > [clip] > > Grepping in my code, I find a lot of things like > > > > dfx = van.dot((ax2 - ax1).flat) > > > > IIRC, the flat version was faster than other methods. > > That goes through the same code path as > `van.dot(np.asarray((ax2 - ax1).flat))`, which calls the `__array__` > attribute of the flatiter object. If it's faster than .ravel(), that is > surprising. > > Well, I never use ravel, there are zero examples in my code ;) So you may be correct. I'm not sure the example I gave is the one where '*.flat' wins, but I recall such a case and have just used flat a lot ever since. Chuck
_______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
