[6134] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[7267] | 3 | * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[6134] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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[6133] | 23 | using System.Collections.Generic;
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| 24 | using System.Linq;
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| 25 | using System.Text;
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| 26 | using System.Xml;
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| 27 | using HeuristicLab.DataImporter.Data;
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| 28 | using HeuristicLab.DataImporter.Data.CommandBase;
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| 29 | using HeuristicLab.DataImporter.Data.Model;
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| 30 | using HeuristicLab.DataImporter.Command.View;
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| 31 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 32 |
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| 33 | namespace HeuristicLab.DataImporter.Command {
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| 34 | [StorableClass]
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| 35 | [ViewableCommandInfoAttribute("Box-Cox Transformation", 1, ColumnGroupState.DoubleColumnSelected, "Change Values",
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| 36 | Position = 6, OptionsView = typeof(BoxCoxTransformationCommandView))]
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| 37 | public class BoxCoxTransformationCommand : ColumnGroupCommandWithAffectedColumnsBase {
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| 38 | private BoxCoxTransformationCommand()
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| 39 | : base(null, string.Empty, null) {
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| 40 | }
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| 41 |
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| 42 | public BoxCoxTransformationCommand(DataSet dataSet, string columnGroupName, int[] affectedColumns)
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| 43 | : base(dataSet, columnGroupName, affectedColumns) {
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| 44 | }
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| 45 |
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| 46 | [Storable]
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| 47 | private double lambda;
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| 48 | public double Lambda {
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| 49 | get { return this.lambda; }
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| 50 | set { this.lambda = value; }
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| 51 | }
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| 52 | [Storable]
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| 53 | private double c;
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| 54 | public double C {
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| 55 | get { return this.c; }
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| 56 | set { this.c = value; }
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| 57 | }
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| 58 |
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| 59 | public override string Description {
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| 60 | get { return "Box-Cox Transformation"; }
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| 61 | }
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| 62 |
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| 63 | public override void Execute() {
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| 64 | base.Execute();
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| 65 | DoubleColumn column;
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| 66 | foreach (int col in AffectedColumns) {
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| 67 | if (ColumnGroup.GetColumn(col) is DoubleColumn) {
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| 68 | column = (DoubleColumn)ColumnGroup.GetColumn(col);
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| 69 | for (int i = 0; i < column.TotalValuesCount; i++)
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| 70 | if (column.GetValue(i) != null) {
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| 71 | if (lambda != 0.0) {
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| 72 | column.ChangeValue(i, Math.Pow((double)column.GetValue(i) + c, lambda) - 1);
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| 73 | } else {
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| 74 | column.ChangeValue(i, Math.Log((double)column.GetValue(i) + c));
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| 75 | }
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| 76 | }
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| 77 | }
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| 78 | }
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| 79 | ColumnGroup.FireChanged();
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| 80 | ColumnGroup = null;
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| 81 | }
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| 82 |
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| 83 | public override void UndoExecute() {
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| 84 | base.UndoExecute();
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| 85 | DoubleColumn column;
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| 86 | foreach (int col in AffectedColumns) {
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| 87 | if (ColumnGroup.GetColumn(col) is DoubleColumn) {
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| 88 | column = (DoubleColumn)ColumnGroup.GetColumn(col);
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| 89 | for (int i = 0; i < column.TotalValuesCount; i++)
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| 90 | if (column.GetValue(i) != null) {
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| 91 | if (lambda != 0.0) {
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| 92 | column.ChangeValue(i, Math.Pow((double)column.GetValue(i) + 1, 1.0 / lambda) - c);
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| 93 | } else {
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| 94 | column.ChangeValue(i, Math.Exp((double)column.GetValue(i)) - c);
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| 95 | }
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| 96 | }
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| 97 | }
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| 98 | }
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| 99 | ColumnGroup.FireChanged();
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| 100 | ColumnGroup = null;
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| 101 | }
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| 102 | }
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| 103 | }
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