pull request for testing/review: ufunc 'where=' parameter
29 Jun
2011
29 Jun
'11
10:07 a.m.
https://github.com/numpy/numpy/pull/99 In [24]: a = np.ones((1000,1000)) In [25]: b = np.ones((1000,1000)) In [26]: c = np.zeros((1000, 1000)) In [27]: m = np.random.rand(1000,1000) > 0.5 In [28]: timeit c[m] = a[m] + b[m] 1 loops, best of 3: 246 ms per loop In [29]: timeit np.add(a, b, out=c, where=m) 10 loops, best of 3: 20.3 ms per loop -Mark
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Mark Wiebe