def test_precision_recall_and_f_calculation(self):
     ede = ClusteringEvaluator()
     targets = [0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 , 1, 2, 2, 2, 2, 2, 2]
     predictions = [0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1 , 2, 2, 2, 2, 2, 0, 2]
     confusion_matrix = ede.create_confusion_matrix(targets, predictions, 3)
     rp_rates = ede.calculate_precision_recall(confusion_matrix)
     fs = ede.calculate_f_measure(rp_rates)
     self.assertEquals(sum(fs), [2.5])