18/01/10 @ 13:18 (-0600), thus spake Warren Weckesser: > Ernest Adrogué wrote: > > Hi, > > > > This is hard to explain. In this code: > > > > reduce(np.logical_or, [m1 & m2, m1 & m3, m2 & m3]) > > > > where m1, m2 and m3 are boolean arrays, I'm trying to figure > > out an expression that works with an arbitrary number of > > arrays, not just 3. Any idea?? > > > > > > If I understand the problem correctly, you want the result to be True > whenever any pair of the corresponding elements of the arrays are True.
Exactly. > This could work: > > reduce(np.add, [m.astype(int) for m in mlist]) > 1 > > where mlist is a list of the boolean array (e.g. mlist = [m1, m2, m3] in > your example). Very clever. Thanks a lot! > Warren > > Bye. > > _______________________________________________ > > NumPy-Discussion mailing list > > NumPy-Discussion@scipy.org > > http://mail.scipy.org/mailman/listinfo/numpy-discussion > > > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion