tomzhang
diff --git a/‎lib/techniques/union/test.py‎
Lines changed: 4 additions & 2 deletions b/‎lib/techniques/union/test.py‎
Lines changed: 4 additions & 2 deletions
@@ -120,8 +120,10 @@ def _orderByTest(cols):
  break
 
  if not retVal:
- ratios.pop(ratios.index(min_))
- ratios.pop(ratios.index(max_))
+ if min_ in ratios:
+ ratios.pop(ratios.index(min_))
+ if max_ in ratios:
+ ratios.pop(ratios.index(max_))
 
  minItem, maxItem = None, None