Changeset 12922 for branches/HeuristicLab.Algorithms.IteratedSentenceConstruction/HeuristicLab.Algorithms.IteratedSymbolicExpressionConstruction/3.3/SearchTree.cs

Timestamp:

08/27/15 16:55:07 (9 years ago)

Author:

gkronber

Message:

#2471

• added a simple implementation of Koza-style symbolic regression
• added ucb tuned and estimation of variance to tabular quality functions

File:

• branches/HeuristicLab.Algorithms.IteratedSentenceConstruction/HeuristicLab.Algorithms.IteratedSymbolicExpressionConstruction/3.3/SearchTree.cs (modified) (1 diff)

branches/HeuristicLab.Algorithms.IteratedSentenceConstruction/HeuristicLab.Algorithms.IteratedSymbolicExpressionConstruction/3.3/SearchTree.cs

@@ -62 +62 @@
 
     private void RemoveRecursively(Node node) {
-      if (node == null) return;
       // when the last child has been removed we must remove the current node from it's parent
-      if (node.children.All(ch => ch == null) && node.parent != null) {
+      while (node.parent != null && node.children.All(ch => ch == null)) {
         node.parent.children[Array.IndexOf(node.parent.children, node)] = null;
-        RemoveRecursively(node.parent);
+        node = node.parent;
       }
     }