Fix frame_to_series, was always returning last row

quantopian · Feb 10, 2015 · 77c5279 · 77c5279
1 parent 502b26e
commit 77c5279
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/zipline/history/history_container.py b/zipline/history/history_container.py
@@ -807,7 +807,7 @@ def frame_to_series(self, field, frame, columns=None):
         if field in ['price', 'close_price']:
             # shortcircuit for full last row
             vals = frame[-1]
-            if ~np.all(np.isnan(vals)):
+            if np.all(~np.isnan(vals)):
                 return vals
             return ffill(frame)[-1]
         elif field == 'open_price':