def test__date_range_minutes(self):
        since = datetime.utcnow() - timedelta(minutes=5)
        values = self.r._date_range('minutes', since)
        self.assertEqual(len(list(values)), 5)
Kalman gain matrices
dataset/ETHPy150Open bradmontgomery/django-redis-metrics/redis_metrics/tests/test_models.py/TestR.test__date_range_minutes--crossover with--dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/tsa/statespace/kalman_filter.py/FilterResults.kalman_gain