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source: branches/GP-MoveOperators/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols/LaggedVariableTreeNode.cs @ 9666

Last change on this file since 9666 was 7259, checked in by swagner, 13 years ago

Updated year of copyrights to 2012 (#1716)

File size: 2.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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 : VariableTreeNode, 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    [StorableConstructor]
40    private LaggedVariableTreeNode(bool deserializing) : base(deserializing) { }
41    private LaggedVariableTreeNode(LaggedVariableTreeNode original, Cloner cloner)
42      : base(original, cloner) {
43      lag = original.lag;
44    }
45    private LaggedVariableTreeNode() { }
46
47    public LaggedVariableTreeNode(LaggedVariable variableSymbol) : base(variableSymbol) { }
48
49    public override bool HasLocalParameters {
50      get {
51        return true;
52      }
53    }
54
55    public override void ResetLocalParameters(IRandom random) {
56      base.ResetLocalParameters(random);
57      lag = random.Next(Symbol.MinLag, Symbol.MaxLag + 1);
58    }
59
60    public override void ShakeLocalParameters(IRandom random, double shakingFactor) {
61      base.ShakeLocalParameters(random, shakingFactor);
62      lag = Math.Min(Symbol.MaxLag, Math.Max(Symbol.MinLag, lag + random.Next(-1, 2)));
63    }
64
65    public override IDeepCloneable Clone(Cloner cloner) {
66      return new LaggedVariableTreeNode(this, cloner);
67    }
68
69    public override string ToString() {
70      return base.ToString() +
71        " (t" + (lag > 0 ? "+" : "") + lag + ")";
72    }
73  }
74}
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