Changeset 3512 for trunk/sources/HeuristicLab.Problems.DataAnalysis/3.3/Symbolic/Symbols/ConstantTreeNode.cs

Timestamp:

04/23/10 14:27:06 (14 years ago)

Author:

gkronber

Message:

Implemented manipulation operators. #937 (Data types and operators for symbolic expression tree encoding)

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis/3.3/Symbolic/Symbols/ConstantTreeNode.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Problems.DataAnalysis/3.3/Symbolic/Symbols/ConstantTreeNode.cs

@@ -63 +63 @@
     }
 
+    public override void ShakeLocalParameters(IRandom random, double shakingFactor) {
+      base.ShakeLocalParameters(random, shakingFactor);
+      var normalDistributedRNG = new NormalDistributedRandom(random, Symbol.ManipulatorNu, Symbol.ManipulatorSigma);
+      double x = normalDistributedRNG.NextDouble();
+      Value = Value + x * shakingFactor;
+    }
+
     public override object Clone() {
       return new ConstantTreeNode(this);