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source: branches/2925_AutoDiffForDynamicalModels/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols/FactorVariable.cs @ 18242

Last change on this file since 18242 was 17246, checked in by gkronber, 5 years ago

#2925: merged r17037:17242 from trunk to branch

File size: 3.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 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.Linq;
25using HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
28using HEAL.Attic;
29namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
30  [StorableType("511B0319-0180-4C2E-81AD-3A8936BE4DE8")]
31  [Item("FactorVariable", "Represents a categorical variable (comparable to factors as in R).")]
32  public sealed class FactorVariable : VariableBase {
33    private readonly Dictionary<string, Dictionary<string, int>> variableValues; // for each variable value also store a zero-based index
34    [Storable]
35    public IEnumerable<KeyValuePair<string, Dictionary<string, int>>> VariableValues {
36      get { return variableValues; }
37      set {
38        if(value == null) throw new ArgumentNullException();
39        variableValues.Clear();
40        foreach(var kvp in value) {
41          variableValues.Add(kvp.Key, new Dictionary<string, int>(kvp.Value));
42        }
43      }
44    }
45
46    [StorableConstructor]
47    private FactorVariable(StorableConstructorFlag _) : base(_) {
48      variableValues = new Dictionary<string, Dictionary<string, int>>();
49    }
50    private FactorVariable(FactorVariable original, Cloner cloner)
51      : base(original, cloner) {
52      variableValues =
53        original.variableValues.ToDictionary(kvp => kvp.Key, kvp => new Dictionary<string, int>(kvp.Value));
54    }
55    public FactorVariable() : this("FactorVariable", "Represents a categorical variable (comparable to factors as in R).") { }
56    public FactorVariable(string name, string description)
57      : base(name, description) {
58      variableValues = new Dictionary<string, Dictionary<string,int>>();
59    }
60
61    public override ISymbolicExpressionTreeNode CreateTreeNode() {
62      return new FactorVariableTreeNode(this);
63    }
64
65    public override IDeepCloneable Clone(Cloner cloner) {
66      return new FactorVariable(this, cloner);
67    }
68
69    public IEnumerable<string> GetVariableValues(string variableName) {
70      return variableValues[variableName].Keys;
71    }
72
73    public int GetIndexForValue(string variableName, string variableValue) {
74      return variableValues[variableName][variableValue];
75    }
76  }
77}
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