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source: trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.3/Symbol.cs @ 3368

Last change on this file since 3368 was 3294, checked in by gkronber, 15 years ago

Added first version of architecture altering operators for ADFs. #290 (Implement ADFs)

File size: 1.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 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 System.Collections.Generic;
24using System.Text;
25using HeuristicLab.Core;
26using System.Linq;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28using HeuristicLab.Data;
29using HeuristicLab.Parameters;
30
31namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding {
32  [StorableClass]
33  [Item("Symbol", "Represents a symbol in a symbolic function tree.")]
34  public abstract class Symbol : NamedItem {
35    #region Properties
36    private double initialFrequency;
37    public double InitialFrequency {
38      get { return initialFrequency; }
39      set {
40        if (value < 0.0) throw new ArgumentException("InitialFrequency must be positive");
41        initialFrequency = value;
42      }
43    }
44    #endregion
45
46    protected Symbol()
47      : base() {
48      this.name = ItemName;
49      this.description = ItemDescription;
50      initialFrequency = 1.0;
51    }
52
53    public virtual SymbolicExpressionTreeNode CreateTreeNode() {
54      return new SymbolicExpressionTreeNode(this);
55    }
56  }
57}
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