Index: trunk/sources/HeuristicLab.Problems.DataAnalysis/3.3/Evaluators/OnlineMeanAbsolutePercentageErrorEvaluator.cs
===================================================================
--- trunk/sources/HeuristicLab.Problems.DataAnalysis/3.3/Evaluators/OnlineMeanAbsolutePercentageErrorEvaluator.cs	(revision 3996)
+++ trunk/sources/HeuristicLab.Problems.DataAnalysis/3.3/Evaluators/OnlineMeanAbsolutePercentageErrorEvaluator.cs	(revision 4022)
@@ -47,5 +47,8 @@
     }
 
-    #region IPairedEnumerableEvaluator Members
+    #region IOnlineEvaluator Members
+    public double Value {
+      get { return MeanAbsolutePercentageError; }
+    }
     public void Reset() {
       n = 0;