source: trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols/LaggedVariableTreeNode.cs @ 14826

Last change on this file since 14826 was 14826, checked in by gkronber, 6 months ago

#2650: merged the factors branch into trunk

File size: 2.4 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 System;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
27  [StorableClass]
28  public sealed class LaggedVariableTreeNode : VariableTreeNodeBase, ILaggedTreeNode {
29    public new LaggedVariable Symbol {
30      get { return (LaggedVariable)base.Symbol; }
31    }
32    [Storable]
33    private int lag;
34    public int Lag {
35      get { return lag; }
36      set { lag = value; }
37    }
38
39    public override bool HasLocalParameters {
40      get { return true; }
41    }
42
43    [StorableConstructor]
44    private LaggedVariableTreeNode(bool deserializing) : base(deserializing) { }
45    private LaggedVariableTreeNode(LaggedVariableTreeNode original, Cloner cloner)
46      : base(original, cloner) {
47      lag = original.lag;
48    }
49
50    public LaggedVariableTreeNode(LaggedVariable variableSymbol) : base(variableSymbol) { }
51
52
53    public override void ResetLocalParameters(IRandom random) {
54      base.ResetLocalParameters(random);
55      lag = random.Next(Symbol.MinLag, Symbol.MaxLag + 1);
56    }
57
58    public override void ShakeLocalParameters(IRandom random, double shakingFactor) {
59      base.ShakeLocalParameters(random, shakingFactor);
60      lag = Math.Min(Symbol.MaxLag, Math.Max(Symbol.MinLag, lag + random.Next(-1, 2)));
61    }
62
63    public override IDeepCloneable Clone(Cloner cloner) {
64      return new LaggedVariableTreeNode(this, cloner);
65    }
66
67    public override string ToString() {
68      return base.ToString() +
69        " (t" + (lag > 0 ? "+" : "") + lag + ")";
70    }
71  }
72}
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