Version 1 hotfix #8 for merge

app.py

@@ -187,7 +187,11 @@ def merge_forecast_data(historical, test, future):
     test.rename(columns={test.columns[0]: "Predicted Sales"}, inplace=True)
     future = future.to_frame()
     future.rename(columns={future.columns[0]: "Future Forecasted Sales"}, inplace=True)
-    merged_dataframe = pd.merge_ordered(historical, pd.merge_ordered(test, future, on='Date'), on='Date')
+    historical.head()
+    test.head()
+    future.head()
+    merged_dataframe = pd.merge_ordered(historical, pd.merge_ordered(test, future, left_on='Date', right_on='Date'), left_on='Date', right_on='Date')
+
 
     return merged_dataframe