On Sun, Jan 13, 2013 at 11:24 PM, Robert Kern <robert.k...@gmail.com> wrote: > On Sun, Jan 13, 2013 at 6:27 PM, Nathaniel Smith <n...@pobox.com> wrote: >> Hi all, >> >> PR 2875 adds two new functions, that generalize zeros(), ones(), >> zeros_like(), ones_like(), by simply taking an arbitrary fill value: >> https://github.com/numpy/numpy/pull/2875 >> So >> np.ones((10, 10)) >> is the same as >> np.filled((10, 10), 1) >> >> The implementations are trivial, but the API seems useful because it >> provides an idiomatic way of efficiently creating an array full of >> inf, or nan, or None, whatever funny value you need. All the >> alternatives are either inefficient (np.ones(...) * np.inf) or >> cumbersome (a = np.empty(...); a.fill(...)). Or so it seems to me. But >> there's a question of taste here; one could argue instead that these >> just add more clutter to the numpy namespace. So, before we merge, >> anyone want to chime in? > > One alternative that does not expand the API with two-liners is to let > the ndarray.fill() method return self: > > a = np.empty(...).fill(20.0)
Nice. Matthew _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
