Changeset 17872 for trunk/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Crossovers

Timestamp:

03/09/21 11:52:12 (4 years ago)

Author:

gkronber

Message:

#3067 bugfix in AfterDeserialization hook

File:

• trunk/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Crossovers/SubtreeCrossover.cs (modified) (1 diff)

trunk/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Crossovers/SubtreeCrossover.cs

@@ -88 +88 @@
     private void AfterDeserialization() {
       // replace with PercentValue for files which had CrossoverProbability as DoubleValue
-      if (Parameters.ContainsKey(CrossoverProbabilityParameterName)) {
-        var oldValue = ((IFixedValueParameter<DoubleValue>)Parameters[CrossoverProbabilityParameterName]).Value.Value;
-        Parameters.Remove(CrossoverProbabilityParameterName);
+      if (Parameters.ContainsKey(CrossoverProbabilityParameterName) && (Parameters[CrossoverProbabilityParameterName] is IFixedValueParameter<DoubleValue> oldParam)) {
+        var oldValue = oldParam.Value.Value;
+        Parameters.Remove(oldParam);
         Parameters.Add(new FixedValueParameter<PercentValue>(CrossoverProbabilityParameterName, "The probability that a crossover is performed. Otherwise a copy of the first parent is returned.", new PercentValue(oldValue)));
       }