metrics[metric][io_type]['steady_state'] = steady
                     metrics[metric][io_type]['series_slope'] = \
                         math.slope_series(series)
+                    metrics[metric][io_type]['series_min'] = \
+                        math.min_series(series)
+                    metrics[metric][io_type]['series_max'] = \
+                        math.max_series(series)
                     treated_data = DataTreatment.data_treatment(series)
 
                     metrics[metric][io_type]['slope'] = \
                     average = math.average(treated_data['average_data'])
                     metrics[metric][io_type]['average'] = average
 
-                    metrics[metric][io_type]['series_min'] = \
-                        math.min_series(treated_data['range_data'])
-                    metrics[metric][io_type]['series_max'] = \
-                        math.max_series(treated_data['range_data'])
-
                     metrics_key = '%s.%s.%s' % (workload, io_type, metric)
                     executor.metadata['details']['metrics'][metrics_key] = \
                         average
 
     """
 
     new_series = []
-    avg = average(data_series)
+    average_series = []
+    for l in data_series:
+        average_series.append(l[1])
+    avg = average(average_series)
     low = avg - (avg * RANGE_DEVIATION)
 
-    for _ in data_series:
-        new_series.append(low)
+    for index, _ in data_series:
+        new_series.append([index, low])
 
     return new_series
 
     """
 
     new_series = []
-    avg = average(data_series)
+    average_series = []
+    for l in data_series:
+        average_series.append(l[1])
+    avg = average(average_series)
     high = avg + (avg * RANGE_DEVIATION)
 
-    for _ in data_series:
-        new_series.append(high)
+    for index, _ in data_series:
+        new_series.append([index, high])
 
     return new_series
 
             self.assertEqual(expected, actual)
 
     def test_min_series(self):
-        expected = [427.7333333333333,
-                    427.7333333333333,
-                    427.7333333333333,
-                    427.7333333333333,
-                    427.7333333333333,
-                    427.7333333333333]
-        data_series = [5, 351, 847, 2, 1985, 18]
+        expected = [[1, 5.6], [2, 5.6], [3, 5.6], [4, 5.6]]
+        data_series = [[1, 6], [2, 5], [3, 7], [4, 10]]
         actual = Range.min_series(data_series)
         self.assertEqual(expected, actual)
 
     def test_max_series(self):
-        expected = [641.5999999999999,
-                    641.5999999999999,
-                    641.5999999999999,
-                    641.5999999999999,
-                    641.5999999999999,
-                    641.5999999999999]
-        data_series = [5, 351, 847, 2, 1985, 18]
+        expected = [[1, 8.4], [2, 8.4], [3, 8.4], [4, 8.4]]
+        data_series = [[1, 6], [2, 5], [3, 7], [4, 10]]
         actual = Range.max_series(data_series)
         self.assertEqual(expected, actual)