Use initial datalabel for non-overlaid volume plot

JasonJun1 · May 30, 2019 · e975b16 · e975b16
1 parent 6fc4f4a
commit e975b16
Showing 1 changed file with 5 additions and 6 deletions.
diff --git a/backtrader/plot/plot.py b/backtrader/plot/plot.py
@@ -653,10 +653,14 @@ def plotdata(self, data, indicators):
         if pmaster is data:
             pmaster = None
 
+        datalabel = ''
+        if hasattr(data, '_name') and data._name:
+            datalabel += data._name
+
         voloverlay = (self.pinf.sch.voloverlay and pmaster is None)
 
         if not voloverlay:
-            vollabel += ' ({})'.format(data._dataname)
+            vollabel += ' ({})'.format(datalabel)
 
         # if self.pinf.sch.volume and self.pinf.sch.voloverlay:
         axdatamaster = None
@@ -678,11 +682,6 @@ def plotdata(self, data, indicators):
                 ax = axdatamaster.twinx()
                 self.pinf.vaxis.append(ax)
 
-        datalabel = ''
-        dataname = ''
-        if hasattr(data, '_name') and data._name:
-            datalabel += data._name
-
         if hasattr(data, '_compression') and \
            hasattr(data, '_timeframe'):
             tfname = TimeFrame.getname(data._timeframe, data._compression)