Changeset 4123 for trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding

Timestamp:

08/01/10 15:24:29 (14 years ago)

Author:

gkronber

Message:

Fixed #1120.

File:

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

trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.3/Crossovers/SymbolicExpressionTreeCrossover.cs

@@ -66 +66 @@
       IRandom random = RandomParameter.ActualValue;
 
-      // randomly swap parents to remove a possible bias from selection (e.g. when using gender-specific selection)
-      if (random.NextDouble() < 0.5) {
-        var tmp = parent0;
-        parent0 = parent1;
-        parent1 = tmp;
-      }
-
       bool success;
       SymbolicExpressionTree result = Cross(random, parent0, parent1,