[5060] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[14186] | 3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[5060] | 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 System;
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| 23 | using HeuristicLab.Common;
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| 24 | using HeuristicLab.Core;
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| 25 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 27 | using HeuristicLab.Random;
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| 28 |
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[5532] | 29 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
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[5060] | 30 | [StorableClass]
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| 31 | public sealed class VariableConditionTreeNode : SymbolicExpressionTreeNode {
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| 32 | #region properties
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| 33 | public new VariableCondition Symbol {
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| 34 | get { return (VariableCondition)base.Symbol; }
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| 35 | }
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| 36 | [Storable]
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| 37 | private double threshold;
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| 38 | public double Threshold {
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| 39 | get { return threshold; }
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| 40 | set { threshold = value; }
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| 41 | }
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| 42 | [Storable]
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| 43 | private string variableName;
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| 44 | public string VariableName {
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| 45 | get { return variableName; }
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| 46 | set { variableName = value; }
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| 47 | }
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| 48 | [Storable]
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| 49 | private double slope;
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| 50 | public double Slope {
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| 51 | get { return slope; }
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| 52 | set { slope = value; }
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| 53 | }
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| 54 | #endregion
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| 55 |
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| 56 | [StorableConstructor]
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| 57 | private VariableConditionTreeNode(bool deserializing) : base(deserializing) { }
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| 58 | private VariableConditionTreeNode(VariableConditionTreeNode original, Cloner cloner)
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| 59 | : base(original, cloner) {
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| 60 | threshold = original.threshold;
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| 61 | variableName = original.variableName;
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| 62 | slope = original.slope;
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| 63 | }
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| 64 | public override IDeepCloneable Clone(Cloner cloner) {
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| 65 | return new VariableConditionTreeNode(this, cloner);
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| 66 | }
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| 67 |
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| 68 | public VariableConditionTreeNode(VariableCondition variableConditionSymbol) : base(variableConditionSymbol) { }
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| 69 | public override bool HasLocalParameters {
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| 70 | get { return true; }
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| 71 | }
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| 72 |
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| 73 | public override void ResetLocalParameters(IRandom random) {
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| 74 | base.ResetLocalParameters(random);
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| 75 | threshold = NormalDistributedRandom.NextDouble(random, Symbol.ThresholdInitializerMu, Symbol.ThresholdInitializerSigma);
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[12706] | 76 |
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| 77 | #pragma warning disable 612, 618
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[5060] | 78 | variableName = Symbol.VariableNames.SelectRandom(random);
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[12706] | 79 | #pragma warning restore 612, 618
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| 80 |
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[5060] | 81 | slope = NormalDistributedRandom.NextDouble(random, Symbol.SlopeInitializerMu, Symbol.SlopeInitializerSigma);
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| 82 | }
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| 83 |
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| 84 | public override void ShakeLocalParameters(IRandom random, double shakingFactor) {
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| 85 | base.ShakeLocalParameters(random, shakingFactor);
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| 86 | double x = NormalDistributedRandom.NextDouble(random, Symbol.ThresholdManipulatorMu, Symbol.ThresholdManipulatorSigma);
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| 87 | threshold = threshold + x * shakingFactor;
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[12706] | 88 |
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| 89 | #pragma warning disable 612, 618
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[5060] | 90 | variableName = Symbol.VariableNames.SelectRandom(random);
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[12706] | 91 | #pragma warning restore 612, 618
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| 92 |
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[5060] | 93 | x = NormalDistributedRandom.NextDouble(random, Symbol.SlopeManipulatorMu, Symbol.SlopeManipulatorSigma);
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| 94 | slope = slope + x * shakingFactor;
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| 95 | }
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| 96 |
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| 97 | public override string ToString() {
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[7671] | 98 | if (slope.IsAlmost(0.0))
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| 99 | return variableName + " > " + threshold.ToString("E4") + Environment.NewLine +
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| 100 | "slope: " + slope.ToString("E4");
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| 101 | else
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| 102 | return variableName + " > " + threshold.ToString("E4");
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[5060] | 103 | }
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| 104 | }
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| 105 | }
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