Changeset 10974 for branches/GrammaticalEvolution/HeuristicLab.Problems.GrammaticalEvolution/Symbolic/GESymbolicRegressionSingleObjectiveProblem.cs

Timestamp:

06/11/14 12:07:15 (10 years ago)

Author:

gkronber

Message:

#2109: minor code cleanup

File:

• branches/GrammaticalEvolution/HeuristicLab.Problems.GrammaticalEvolution/Symbolic/GESymbolicRegressionSingleObjectiveProblem.cs (modified) (3 diffs)

branches/GrammaticalEvolution/HeuristicLab.Problems.GrammaticalEvolution/Symbolic/GESymbolicRegressionSingleObjectiveProblem.cs

@@ -35 +35 @@
 namespace HeuristicLab.Problems.GrammaticalEvolution {
   [Item("Grammatical Evolution Symbolic Regression Problem (single objective)",
-        "Represents a single objective symbolic regression problem, implemented in Grammatical Evolution.")]
+        "Represents grammatical evolution for single objective symbolic regression problems.")]
   [StorableClass]
   [Creatable("Problems")]
@@ -72 +72 @@
 
       ApplyLinearScalingParameter.Value.Value = true;
-      Maximization.Value = true;
+      Maximization.Value = Evaluator.Maximization;
       MaximumSymbolicExpressionTreeLength.Value = InitialMaximumTreeLength;
 
@@ -86 +86 @@
 
     private void RegisterEventHandlers() {
-      // nothing to do
+      // when the ge evaluator itself changes
+      EvaluatorParameter.ValueChanged += (sender, args) => {
+        // register a new hander for the symbreg evaluator in the ge evaluator
+        // hacky because we the evaluator does not have an event for changes of the maximization property
+        EvaluatorParameter.Value.EvaluatorParameter.ValueChanged +=
+          (_, __) => Maximization.Value = Evaluator.Maximization;
+      };
+      EvaluatorParameter.Value.EvaluatorParameter.ValueChanged +=
+        (sender, args) => Maximization.Value = Evaluator.Maximization;
     }