Changeset 5014 for trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.3/SymbolicExpressionTreeNode.cs

Timestamp:

12/03/10 14:11:02 (13 years ago)

Author:

mkommend

Message:

Corrected SubTreeCrossover and ReplaceBranchManipulation to handle MaxExpressionDepth correctly. Additionally MaxExpressionDepth < 3 is not allowed.
(ticket #1315).

File:

• trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.3/SymbolicExpressionTreeNode.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.3/SymbolicExpressionTreeNode.cs

@@ -178 +178 @@
       return Grammar.Symbols.Where(s => Grammar.IsAllowedChild(Symbol, s, argumentIndex));
     }
+    public IEnumerable<Symbol> GetAllowedSymbols(int argumentIndex, int maxExpressionDepth) {
+      return Grammar.Symbols.Where(s => Grammar.IsAllowedChild(Symbol, s, argumentIndex) && Grammar.GetMinExpressionDepth(s) <= maxExpressionDepth);
+    }
+
     public int GetMinSubtreeCount() {
       return Grammar.GetMinSubtreeCount(Symbol);