Auto-scale Y-axis for indicators when zooming kernc#356

Author: zlpatel

backtesting/_plotting.py

@@ -526,8 +526,8 @@ def __eq__(self, other):
 
             indicator_max=value.df.max(axis='columns')
             indicator_min=value.df.min(axis='columns')
-            source.add(indicator_max, f'indicator_{j}_range_max')
-            source.add(indicator_min,f'indicator_{j}_range_min')
+            source.add(indicator_max, f'indicator_{i}_range_max')
+            source.add(indicator_min,f'indicator_{i}_range_min')
 
             for j, arr in enumerate(value, 1):
                 color = next(colors)