Pierre wrote: > Hello, > > I would like to know how to find the difference (set operation) > between 2 arrays : > > a = array([1,2, 3,2,5,2]) > b = array([1,2]) > I want a - b = [3,5] > > Well, the equivalence of setdiff in matlab... > > I thought a.difference(b) could work, but no : AttributeError: > 'numpy.ndarray' object has no attribute 'difference'
Not sure if this works with numpy-arrays, but set(a) - set(b) might just work if the arrays are iterable. Diez -- http://mail.python.org/mailman/listinfo/python-list
