2008/8/3 Greg Novak <[EMAIL PROTECTED]>: > First of all, my desired operation is well-posed: I'd like f(ar1, > ar2) to return something in the shape of ar1 with True if the value at > that position appears anywhere in ar2 (regardless of duplication) and > False otherwise.
Just because one-liners are so irresistable: >>> x array([1, 1, 2, 5, 7]) >>> x2 array([1, 7]) >>> np.logical_or.reduce(x[:,None] == x2, axis=1) array([ True, True, False, False, True], dtype=bool) >>> (x[:,None] == x2).sum(axis=1) > 0 array([ True, True, False, False, True], dtype=bool) Creates an MnX temporary, but oh well. Thanks for taking a look at member1d. I'm swamped, so I cannot take part in the conversation, but I hope someone takes note. If no one does, please file a ticket so that we don't lose track of this conversation. Cheers Stéfan _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
