<josef.pktd <at> gmail.com> writes: > setmember1d is very fast compared to the other solutions for large b. > > However, setmember1d requires that both arrays only have unique elements. > > So it doesn't work if, for example, your first array is a data vector > with member ship in different groups (therefore not only uniques), and > the second array is the sub group that you want to check. >
Note there's a patch waiting to be reviewed that adds another version of setmember_1d for non-unique inputs. http://projects.scipy.org/numpy/ticket/1036 Neil _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
