1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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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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23 | using System.Collections.Generic;
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24 | using System.Linq;
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25 | using HeuristicLab.Collections;
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26 | using HeuristicLab.Common;
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27 | using HeuristicLab.Core;
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28 | using HeuristicLab.Data;
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29 | using HeuristicLab.Parameters;
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30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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31 |
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32 | namespace HeuristicLab.Problems.DataAnalysis {
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33 | [StorableClass]
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34 | public abstract class DataAnalysisProblemData : ParameterizedNamedItem, IDataAnalysisProblemData {
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35 | private const string DatasetParameterName = "Dataset";
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36 | private const string InputVariablesParameterName = "InputVariables";
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37 | private const string TrainingPartitionStartParameterName = "TrainingPartitionStart";
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38 | private const string TrainingPartitionEndParameterName = "TrainingPartitionEnd";
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39 | private const string TestPartitionStartParameterName = "TestPartitionStart";
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40 | private const string TestPartitionEndParameterName = "TestPartitionEnd";
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41 |
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42 | #region parameter properites
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43 | public IFixedValueParameter<Dataset> DatasetParameter {
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44 | get { return (IFixedValueParameter<Dataset>)Parameters[DatasetParameterName]; }
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45 | }
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46 | public IFixedValueParameter<ICheckedItemCollection<StringValue>> InputVariablesParameter {
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47 | get { return (IFixedValueParameter<ICheckedItemCollection<StringValue>>)Parameters[InputVariablesParameterName]; }
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48 | }
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49 | public IFixedValueParameter<IntValue> TrainingPartitionStartParameter {
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50 | get { return (IFixedValueParameter<IntValue>)Parameters[TrainingPartitionStartParameterName]; }
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51 | }
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52 | public IFixedValueParameter<IntValue> TrainingPartitionEndParameter {
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53 | get { return (IFixedValueParameter<IntValue>)Parameters[TrainingPartitionEndParameterName]; }
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54 | }
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55 | public IFixedValueParameter<IntValue> TestPartitionStartParameter {
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56 | get { return (IFixedValueParameter<IntValue>)Parameters[TestPartitionStartParameterName]; }
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57 | }
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58 | public IFixedValueParameter<IntValue> TestPartitionEndParameter {
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59 | get { return (IFixedValueParameter<IntValue>)Parameters[TestPartitionEndParameterName]; }
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60 | }
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61 | #endregion
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62 |
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63 | #region propeties
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64 | public Dataset Dataset {
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65 | get { return DatasetParameter.Value; }
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66 | }
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67 | public ICheckedItemCollection<StringValue> InputVariables {
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68 | get { return InputVariablesParameter.Value; }
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69 | }
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70 | public IEnumerable<string> AllowedInputVariables {
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71 | get { return InputVariables.CheckedItems.Select(x => x.Value); }
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72 | }
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73 |
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74 | public IntValue TrainingPartitionStart {
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75 | get { return TrainingPartitionStartParameter.Value; }
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76 | }
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77 | public IntValue TrainingPartitionEnd {
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78 | get { return TrainingPartitionEndParameter.Value; }
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79 | }
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80 | public IntValue TestPartitionStart {
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81 | get { return TestPartitionStartParameter.Value; }
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82 | }
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83 | public IntValue TestPartitionEnd {
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84 | get { return TestPartitionEndParameter.Value; }
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85 | }
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86 |
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87 | public IEnumerable<int> TrainingIndizes {
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88 | get {
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89 | return Enumerable.Range(TrainingPartitionStart.Value, TrainingPartitionEnd.Value - TrainingPartitionStart.Value)
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90 | .Where(i => i >= 0 && i < Dataset.Rows && (i < TestPartitionStart.Value || TestPartitionEnd.Value <= i));
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91 | }
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92 | }
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93 | public IEnumerable<int> TestIndizes {
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94 | get {
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95 | return Enumerable.Range(TestPartitionStart.Value, TestPartitionEnd.Value - TestPartitionStart.Value)
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96 | .Where(i => i >= 0 && i < Dataset.Rows);
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97 | }
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98 | }
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99 | #endregion
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100 |
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101 | protected DataAnalysisProblemData(DataAnalysisProblemData original, Cloner cloner) : base(original, cloner) { }
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102 | [StorableConstructor]
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103 | protected DataAnalysisProblemData(bool deserializing) : base(deserializing) { }
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104 |
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105 | protected DataAnalysisProblemData(Dataset dataset, IEnumerable<string> allowedInputVariables) {
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106 | if (dataset == null) throw new ArgumentNullException("The dataset must not be null.");
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107 | if (allowedInputVariables == null) throw new ArgumentNullException("The allowedInputVariables must not be null.");
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108 |
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109 | if (allowedInputVariables.Except(dataset.VariableNames).Any())
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110 | throw new ArgumentException("All allowed input variables must be present in the dataset.");
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111 |
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112 | var inputVariables = new CheckedItemCollection<StringValue>(dataset.VariableNames.Select(x => new StringValue(x)));
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113 | foreach (StringValue x in inputVariables)
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114 | inputVariables.SetItemCheckedState(x, allowedInputVariables.Contains(x.Value));
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115 |
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116 | int trainingPartitionStart = 0;
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117 | int trainingPartitionEnd = dataset.Rows / 2;
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118 | int testPartitionStart = dataset.Rows / 2;
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119 | int testPartitionEnd = dataset.Rows;
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120 |
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121 | Parameters.Add(new FixedValueParameter<Dataset>(DatasetParameterName, "", dataset));
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122 | Parameters.Add(new FixedValueParameter<ICheckedItemCollection<StringValue>>(InputVariablesParameterName, "", inputVariables.AsReadOnly()));
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123 | Parameters.Add(new FixedValueParameter<IntValue>(TrainingPartitionStartParameterName, "", new IntValue(trainingPartitionStart)));
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124 | Parameters.Add(new FixedValueParameter<IntValue>(TrainingPartitionEndParameterName, "", new IntValue(trainingPartitionEnd)));
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125 | Parameters.Add(new FixedValueParameter<IntValue>(TestPartitionStartParameterName, "", new IntValue(testPartitionStart)));
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126 | Parameters.Add(new FixedValueParameter<IntValue>(TestPartitionEndParameterName, "", new IntValue(testPartitionEnd)));
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127 |
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128 | ((ValueParameter<Dataset>)DatasetParameter).ReactOnValueToStringChangedAndValueItemImageChanged = false;
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129 | RegisterEventHandlers();
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130 | }
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131 |
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132 | private void RegisterEventHandlers() {
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133 | DatasetParameter.ValueChanged += new EventHandler(Parameter_ValueChanged);
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134 | InputVariables.CheckedItemsChanged += new CollectionItemsChangedEventHandler<StringValue>(InputVariables_CheckedItemsChanged);
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135 | TrainingPartitionStart.ValueChanged += new EventHandler(Parameter_ValueChanged);
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136 | TrainingPartitionEnd.ValueChanged += new EventHandler(Parameter_ValueChanged);
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137 | TestPartitionStart.ValueChanged += new EventHandler(Parameter_ValueChanged);
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138 | TestPartitionEnd.ValueChanged += new EventHandler(Parameter_ValueChanged);
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139 | }
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140 |
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141 | private void InputVariables_CheckedItemsChanged(object sender, CollectionItemsChangedEventArgs<StringValue> e) {
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142 | OnChanged();
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143 | }
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144 | private void Parameter_ValueChanged(object sender, EventArgs e) {
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145 | OnChanged();
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146 | }
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147 |
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148 | public event EventHandler Changed;
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149 | protected virtual void OnChanged() {
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150 | var listeners = Changed;
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151 | if (listeners != null) listeners(this, EventArgs.Empty);
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152 | }
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153 | }
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154 | }
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