fix normalize

References - incorrect normalize method linkedin#40
earthgecko · Jan 8, 2018 · 3adf692 · 3adf692
1 parent 95161ae
commit 3adf692
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/luminol/modules/time_series.py b/src/luminol/modules/time_series.py
@@ -282,13 +282,14 @@ def add_offset(self, offset):
 
     def normalize(self):
         """
-        Return a new time series with all values normalized to 0 to 1.
+        Return a new time series with all values normalized between 0 and 1.
 
         :return: `None`
         """
         maximum = self.max()
         if maximum:
-            self.values = [value / maximum for value in self.values]
+            minimum = self.min()
+            self.values = [((value - minimum) / (maximum - minimum)) for value in self.values]
 
     def crop(self, start_timestamp, end_timestamp):
         """