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source: branches/HeuristicLab.DataImporter/HeuristicLab.DataImporter.Command/ChangeValues/BoxCoxTransformationCommand.cs @ 10391

Last change on this file since 10391 was 9615, checked in by mkommend, 11 years ago

#1734: Updated copyright information in all DataImporter classes.

File size: 3.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 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.DataImporter.Command.View;
24using HeuristicLab.DataImporter.Data;
25using HeuristicLab.DataImporter.Data.CommandBase;
26using HeuristicLab.DataImporter.Data.Model;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29namespace HeuristicLab.DataImporter.Command {
30  [StorableClass]
31  [ViewableCommandInfoAttribute("Box-Cox Transformation", 1, ColumnGroupState.DoubleColumnSelected, "Change Values",
32  Position = 6, OptionsView = typeof(BoxCoxTransformationCommandView))]
33  public class BoxCoxTransformationCommand : ColumnGroupCommandWithAffectedColumnsBase {
34    [StorableConstructor]
35    protected BoxCoxTransformationCommand(bool deserializing) : base(deserializing) { }
36
37    public BoxCoxTransformationCommand(DataSet dataSet, string columnGroupName, int[] affectedColumns)
38      : base(dataSet, columnGroupName, affectedColumns) {
39    }
40
41    [Storable]
42    private double lambda;
43    public double Lambda {
44      get { return this.lambda; }
45      set { this.lambda = value; }
46    }
47    [Storable]
48    private double c;
49    public double C {
50      get { return this.c; }
51      set { this.c = value; }
52    }
53
54    public override string Description {
55      get { return "Box-Cox Transformation"; }
56    }
57
58    public override void Execute() {
59      base.Execute();
60      DoubleColumn column;
61      foreach (int col in AffectedColumns) {
62        if (ColumnGroup.GetColumn(col) is DoubleColumn) {
63          column = (DoubleColumn)ColumnGroup.GetColumn(col);
64          for (int i = 0; i < column.TotalValuesCount; i++)
65            if (column.GetValue(i) != null) {
66              if (lambda != 0.0) {
67                column.ChangeValue(i, Math.Pow((double)column.GetValue(i) + c, lambda) - 1);
68              } else {
69                column.ChangeValue(i, Math.Log((double)column.GetValue(i) + c));
70              }
71            }
72        }
73      }
74      ColumnGroup.FireChanged();
75      ColumnGroup = null;
76    }
77
78    public override void UndoExecute() {
79      base.UndoExecute();
80      DoubleColumn column;
81      foreach (int col in AffectedColumns) {
82        if (ColumnGroup.GetColumn(col) is DoubleColumn) {
83          column = (DoubleColumn)ColumnGroup.GetColumn(col);
84          for (int i = 0; i < column.TotalValuesCount; i++)
85            if (column.GetValue(i) != null) {
86              if (lambda != 0.0) {
87                column.ChangeValue(i, Math.Pow((double)column.GetValue(i) + 1, 1.0 / lambda) - c);
88              } else {
89                column.ChangeValue(i, Math.Exp((double)column.GetValue(i)) - c);
90              }
91            }
92        }
93      }
94      ColumnGroup.FireChanged();
95      ColumnGroup = null;
96    }
97  }
98}
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