def test_anonymous_get_requests_redirected_to_index(self):
        self.client.logout()

        response = self.client.get(reverse('results-export'), follow=True)
        self.assertRedirects(response, '/?next=%2Fadmin%2Fresults')
def heidke_skill_score(self):
        n = float(self.table.sum())
        nf = self.table.sum(axis=1)
        no = self.table.sum(axis=0)
        correct = float(self.table.trace())
        return (correct / n - (nf * no).sum() / n ** 2) / (1 - (nf * no).sum() / n ** 2)