source: branches/2839_HiveProjectManagement/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols/LaggedTreeNode.cs @ 16057

Last change on this file since 16057 was 16057, checked in by jkarder, 4 years ago

#2839:

File size: 2.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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.Encodings.SymbolicExpressionTreeEncoding;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
28  [StorableClass]
29  public class LaggedTreeNode : SymbolicExpressionTreeNode, ILaggedTreeNode {
30    public new LaggedSymbol Symbol {
31      get { return (LaggedSymbol)base.Symbol; }
32    }
33    [Storable]
34    private int lag;
35    public int Lag {
36      get { return lag; }
37      set { lag = value; }
38    }
39
40    [StorableConstructor]
41    protected LaggedTreeNode(bool deserializing) : base(deserializing) { }
42    protected LaggedTreeNode(LaggedTreeNode original, Cloner cloner)
43      : base(original, cloner) {
44      lag = original.lag;
45    }
46    public LaggedTreeNode(LaggedSymbol timeLagSymbol) : base(timeLagSymbol) { }
47
48    public override bool HasLocalParameters {
49      get { return true; }
50    }
51
52    public override void ResetLocalParameters(IRandom random) {
53      base.ResetLocalParameters(random);
54      lag = random.Next(Symbol.MinLag, Symbol.MaxLag + 1);
55    }
56
57    public override void ShakeLocalParameters(IRandom random, double shakingFactor) {
58      base.ShakeLocalParameters(random, shakingFactor);
59      lag = Math.Min(Symbol.MaxLag, Math.Max(Symbol.MinLag, lag + random.Next(-1, 2)));
60    }
61
62    public override IDeepCloneable Clone(Cloner cloner) {
63      return new LaggedTreeNode(this, cloner);
64    }
65
66    public override string ToString() {
67      return base.ToString() + " " + lag.ToString();
68    }
69  }
70}
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