It is surprising how often you need to know only the unique entries in a vector of entries. In python, we create a “set” from a list, which only contains unique entries. Then we convert the set back to a list.
a = [1, 1, 2, 3, 4, 5, 3, 5] b = list(set(a)) print b
[1, 2, 3, 4, 5]
a = ['a', 'b', 'abracadabra', 'b', 'c', 'd', 'b'] print list(set(a))
['a', 'c', 'b', 'abracadabra', 'd']
Copyright (C) 2013 by John Kitchin. See the License for information about copying.