[11407] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[15973] | 3 | * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[11407] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using HeuristicLab.Common;
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| 23 | using HeuristicLab.Core;
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| 24 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 25 | using HeuristicLab.Operators;
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| 26 | using HeuristicLab.Parameters;
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| 27 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 28 |
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| 29 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
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[13300] | 30 | [Item("SymbolicExpressionTreeSimplificationOperator", "Simplifies symbolic expression trees encoding a mathematical formula.")]
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[13220] | 31 | [StorableClass]
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| 32 | public class SymbolicDataAnalysisExpressionTreeSimplificationOperator : SingleSuccessorOperator, ISymbolicExpressionTreeOperator {
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[11407] | 33 | private const string SymbolicExpressionTreeParameterName = "SymbolicExpressionTree";
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| 34 |
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| 35 | public ILookupParameter<ISymbolicExpressionTree> SymbolicExpressionTreeParameter {
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| 36 | get { return (ILookupParameter<ISymbolicExpressionTree>)Parameters[SymbolicExpressionTreeParameterName]; }
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| 37 | }
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| 38 |
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| 39 | [StorableConstructor]
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| 40 | protected SymbolicDataAnalysisExpressionTreeSimplificationOperator(bool deserializing) : base(deserializing) { }
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| 41 | protected SymbolicDataAnalysisExpressionTreeSimplificationOperator(SymbolicDataAnalysisExpressionTreeSimplificationOperator original, Cloner cloner)
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| 42 | : base(original, cloner) { }
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| 43 | public override IDeepCloneable Clone(Cloner cloner) {
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| 44 | return new SymbolicDataAnalysisExpressionTreeSimplificationOperator(this, cloner);
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| 45 | }
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| 46 |
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| 47 | public SymbolicDataAnalysisExpressionTreeSimplificationOperator() {
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[13220] | 48 | Parameters.Add(new LookupParameter<ISymbolicExpressionTree>(SymbolicExpressionTreeParameterName, "The symbolic expression tree to simplify."));
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[11407] | 49 | }
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| 50 |
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| 51 | public override IOperation Apply() {
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| 52 | var tree = SymbolicExpressionTreeParameter.ActualValue;
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[15973] | 53 | var simplifiedTree = TreeSimplifier.Simplify(tree);
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| 54 | simplifiedTree = TreeSimplifier.Simplify(simplifiedTree);
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[11407] | 55 | SymbolicExpressionTreeParameter.ActualValue = simplifiedTree;
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| 56 |
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| 57 | return base.Apply();
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| 58 | }
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| 59 | }
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| 60 | }
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