Changeset 14036 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SingleObjective

Timestamp:

07/11/16 15:03:59 (8 years ago)

Author:

mkommend

Message:

#2627: Fixed bug in constant optimization of trees with unary subtraction symbols.

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SingleObjective/Evaluators/SymbolicRegressionConstantOptimizationEvaluator.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SingleObjective/Evaluators/SymbolicRegressionConstantOptimizationEvaluator.cs

@@ -332 +332 @@
           terms.Add(t);
         }
-        term = AutoDiff.TermBuilder.Sum(terms);
+        if (terms.Count == 1) term = -terms[0];
+        else term = AutoDiff.TermBuilder.Sum(terms);
         return true;
       }