source: branches/symbreg-factors-2650/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols/FactorVariableTreeNode.cs @ 14233

Last change on this file since 14233 was 14233, checked in by gkronber, 3 years ago

#2650 added to files missed in the last commit

File size: 3.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26using HeuristicLab.Random;
27namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
28  [StorableClass]
29  public class FactorVariableTreeNode : SymbolicExpressionTreeTerminalNode {
30    public new FactorVariable Symbol {
31      get { return (FactorVariable)base.Symbol; }
32    }
33    [Storable]
34    private string variableName;
35    public string VariableName {
36      get { return variableName; }
37      set { variableName = value; }
38    }
39
40    [Storable]
41    private string variableValue;
42    public string VariableValue {
43      get { return variableValue; }
44      set { variableValue = value; }
45    }
46
47    [StorableConstructor]
48    protected FactorVariableTreeNode(bool deserializing) : base(deserializing) { }
49    protected FactorVariableTreeNode(FactorVariableTreeNode original, Cloner cloner)
50      : base(original, cloner) {
51      variableName = original.variableName;
52      variableValue = original.variableValue;
53    }
54    protected FactorVariableTreeNode() { }
55    public FactorVariableTreeNode(FactorVariable variableSymbol) : base(variableSymbol) { }
56
57    public override bool HasLocalParameters {
58      get { return true; }
59    }
60
61    public override void ResetLocalParameters(IRandom random) {
62      base.ResetLocalParameters(random);
63      variableName = Symbol.VariableNames.SampleRandom(random);
64      variableValue = Symbol.GetVariableValues(VariableName).SampleRandom(random);
65    }
66
67    public override void ShakeLocalParameters(IRandom random, double shakingFactor) {
68      base.ShakeLocalParameters(random, shakingFactor);
69      if (random.NextDouble() < 0.2) {
70        variableName = Symbol.VariableNames.SampleRandom(random);
71      }
72      variableValue = Symbol.GetVariableValues(VariableName).SampleRandom(random);
73    }
74
75    public override IDeepCloneable Clone(Cloner cloner) {
76      return new FactorVariableTreeNode(this, cloner);
77    }
78
79    public override string ToString() {
80      return variableName + " = " + variableValue;
81    }
82  }
83}
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