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.Common;
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26 | using HeuristicLab.Data;
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27 | using HeuristicLab.Optimization;
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28 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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29 |
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30 | namespace HeuristicLab.Problems.DataAnalysis {
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31 | [StorableClass]
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32 | public abstract class TimeSeriesPrognosisSolutionBase : DataAnalysisSolution, ITimeSeriesPrognosisSolution {
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33 | private const string TrainingMeanSquaredErrorResultName = "Mean squared error (training)";
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34 | private const string TestMeanSquaredErrorResultName = "Mean squared error (test)";
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35 | private const string TrainingMeanAbsoluteErrorResultName = "Mean absolute error (training)";
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36 | private const string TestMeanAbsoluteErrorResultName = "Mean absolute error (test)";
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37 | private const string TrainingSquaredCorrelationResultName = "Pearson's R² (training)";
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38 | private const string TestSquaredCorrelationResultName = "Pearson's R² (test)";
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39 | private const string TrainingRelativeErrorResultName = "Average relative error (training)";
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40 | private const string TestRelativeErrorResultName = "Average relative error (test)";
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41 | private const string TrainingNormalizedMeanSquaredErrorResultName = "Normalized mean squared error (training)";
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42 | private const string TestNormalizedMeanSquaredErrorResultName = "Normalized mean squared error (test)";
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43 | private const string TrainingDirectionalSymmetryResultName = "Average directional symmetry (training)";
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44 | private const string TestDirectionalSymmetryResultName = "Average directional symmetry (test)";
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45 | private const string TrainingWeightedDirectionalSymmetryResultName = "Average weighted directional symmetry (training)";
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46 | private const string TestWeightedDirectionalSymmetryResultName = "Average weighted directional symmetry (test)";
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47 | private const string TrainingTheilsUStatisticLastResultName = "Average Theil's U (last) (training)";
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48 | private const string TestTheilsUStatisticLastResultName = "Average Theil's U (last) (test)";
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49 | private const string TrainingTheilsUStatisticMeanResultName = "Average Theil's U (mean) (training)";
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50 | private const string TestTheilsUStatisticMeanResultName = "Average Theil's U (mean) (test)";
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51 | private const string TrainingTheilsUStatisticMaResultName = "Average Theil's U (moving average) (training)";
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52 | private const string TestTheilsUStatisticMaResultName = "Average Theil's U (moving average) (test)";
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53 |
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54 | public new ITimeSeriesPrognosisModel Model {
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55 | get { return (ITimeSeriesPrognosisModel)base.Model; }
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56 | protected set { base.Model = value; }
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57 | }
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58 |
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59 | public new ITimeSeriesPrognosisProblemData ProblemData {
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60 | get { return (ITimeSeriesPrognosisProblemData)base.ProblemData; }
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61 | set { base.ProblemData = value; }
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62 | }
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63 |
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64 | [Storable]
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65 | private int horizon;
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66 | public int Horizon {
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67 | get { return horizon; }
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68 | set {
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69 | if (horizon != value) {
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70 | horizon = value;
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71 | RecalculateResults();
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72 | }
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73 | }
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74 | }
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75 |
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76 | public abstract IEnumerable<IEnumerable<double>> GetPrognosedValues(IEnumerable<int> rows, int horizon);
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77 |
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78 | #region Results
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79 | public double TrainingMeanSquaredError {
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80 | get { return ((DoubleValue)this[TrainingMeanSquaredErrorResultName].Value).Value; }
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81 | private set { ((DoubleValue)this[TrainingMeanSquaredErrorResultName].Value).Value = value; }
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82 | }
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83 | public double TestMeanSquaredError {
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84 | get { return ((DoubleValue)this[TestMeanSquaredErrorResultName].Value).Value; }
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85 | private set { ((DoubleValue)this[TestMeanSquaredErrorResultName].Value).Value = value; }
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86 | }
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87 | public double TrainingMeanAbsoluteError {
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88 | get { return ((DoubleValue)this[TrainingMeanAbsoluteErrorResultName].Value).Value; }
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89 | private set { ((DoubleValue)this[TrainingMeanAbsoluteErrorResultName].Value).Value = value; }
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90 | }
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91 | public double TestMeanAbsoluteError {
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92 | get { return ((DoubleValue)this[TestMeanAbsoluteErrorResultName].Value).Value; }
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93 | private set { ((DoubleValue)this[TestMeanAbsoluteErrorResultName].Value).Value = value; }
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94 | }
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95 | public double TrainingRSquared {
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96 | get { return ((DoubleValue)this[TrainingSquaredCorrelationResultName].Value).Value; }
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97 | private set { ((DoubleValue)this[TrainingSquaredCorrelationResultName].Value).Value = value; }
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98 | }
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99 | public double TestRSquared {
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100 | get { return ((DoubleValue)this[TestSquaredCorrelationResultName].Value).Value; }
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101 | private set { ((DoubleValue)this[TestSquaredCorrelationResultName].Value).Value = value; }
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102 | }
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103 | public double TrainingRelativeError {
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104 | get { return ((DoubleValue)this[TrainingRelativeErrorResultName].Value).Value; }
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105 | private set { ((DoubleValue)this[TrainingRelativeErrorResultName].Value).Value = value; }
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106 | }
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107 | public double TestRelativeError {
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108 | get { return ((DoubleValue)this[TestRelativeErrorResultName].Value).Value; }
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109 | private set { ((DoubleValue)this[TestRelativeErrorResultName].Value).Value = value; }
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110 | }
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111 | public double TrainingNormalizedMeanSquaredError {
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112 | get { return ((DoubleValue)this[TrainingNormalizedMeanSquaredErrorResultName].Value).Value; }
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113 | private set { ((DoubleValue)this[TrainingNormalizedMeanSquaredErrorResultName].Value).Value = value; }
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114 | }
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115 | public double TestNormalizedMeanSquaredError {
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116 | get { return ((DoubleValue)this[TestNormalizedMeanSquaredErrorResultName].Value).Value; }
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117 | private set { ((DoubleValue)this[TestNormalizedMeanSquaredErrorResultName].Value).Value = value; }
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118 | }
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119 | public double TrainingDirectionalSymmetry {
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120 | get { return ((DoubleValue)this[TrainingDirectionalSymmetryResultName].Value).Value; }
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121 | private set { ((DoubleValue)this[TrainingDirectionalSymmetryResultName].Value).Value = value; }
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122 | }
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123 | public double TestDirectionalSymmetry {
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124 | get { return ((DoubleValue)this[TestDirectionalSymmetryResultName].Value).Value; }
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125 | private set { ((DoubleValue)this[TestDirectionalSymmetryResultName].Value).Value = value; }
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126 | }
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127 | public double TrainingWeightedDirectionalSymmetry {
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128 | get { return ((DoubleValue)this[TrainingWeightedDirectionalSymmetryResultName].Value).Value; }
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129 | private set { ((DoubleValue)this[TrainingWeightedDirectionalSymmetryResultName].Value).Value = value; }
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130 | }
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131 | public double TestWeightedDirectionalSymmetry {
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132 | get { return ((DoubleValue)this[TestWeightedDirectionalSymmetryResultName].Value).Value; }
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133 | private set { ((DoubleValue)this[TestWeightedDirectionalSymmetryResultName].Value).Value = value; }
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134 | }
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135 | public double TrainingTheilsUStatisticLast {
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136 | get { return ((DoubleValue)this[TrainingTheilsUStatisticLastResultName].Value).Value; }
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137 | private set { ((DoubleValue)this[TrainingTheilsUStatisticLastResultName].Value).Value = value; }
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138 | }
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139 | public double TestTheilsUStatisticLast {
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140 | get { return ((DoubleValue)this[TestTheilsUStatisticLastResultName].Value).Value; }
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141 | private set { ((DoubleValue)this[TestTheilsUStatisticLastResultName].Value).Value = value; }
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142 | }
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143 | public double TrainingTheilsUStatisticMean {
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144 | get { return ((DoubleValue)this[TrainingTheilsUStatisticMeanResultName].Value).Value; }
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145 | private set { ((DoubleValue)this[TrainingTheilsUStatisticMeanResultName].Value).Value = value; }
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146 | }
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147 | public double TestTheilsUStatisticMean {
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148 | get { return ((DoubleValue)this[TestTheilsUStatisticMeanResultName].Value).Value; }
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149 | private set { ((DoubleValue)this[TestTheilsUStatisticMeanResultName].Value).Value = value; }
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150 | }
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151 | public double TrainingTheilsUStatisticMovingAverage {
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152 | get { return ((DoubleValue)this[TrainingTheilsUStatisticMaResultName].Value).Value; }
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153 | private set { ((DoubleValue)this[TrainingTheilsUStatisticMaResultName].Value).Value = value; }
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154 | }
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155 | public double TestTheilsUStatisticMovingAverage {
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156 | get { return ((DoubleValue)this[TestTheilsUStatisticMaResultName].Value).Value; }
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157 | private set { ((DoubleValue)this[TestTheilsUStatisticMaResultName].Value).Value = value; }
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158 | }
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159 | #endregion
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160 |
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161 | [StorableConstructor]
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162 | protected TimeSeriesPrognosisSolutionBase(bool deserializing) : base(deserializing) { }
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163 | protected TimeSeriesPrognosisSolutionBase(TimeSeriesPrognosisSolutionBase original, Cloner cloner)
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164 | : base(original, cloner) {
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165 | this.horizon = original.horizon;
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166 | }
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167 | protected TimeSeriesPrognosisSolutionBase(ITimeSeriesPrognosisModel model, ITimeSeriesPrognosisProblemData problemData)
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168 | : base(model, problemData) {
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169 | Add(new Result(TrainingMeanSquaredErrorResultName, "Mean of squared errors of the model on the training partition", new DoubleValue()));
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170 | Add(new Result(TestMeanSquaredErrorResultName, "Mean of squared errors of the model on the test partition", new DoubleValue()));
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171 | Add(new Result(TrainingMeanAbsoluteErrorResultName, "Mean of absolute errors of the model on the training partition", new DoubleValue()));
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172 | Add(new Result(TestMeanAbsoluteErrorResultName, "Mean of absolute errors of the model on the test partition", new DoubleValue()));
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173 | Add(new Result(TrainingSquaredCorrelationResultName, "Squared Pearson's correlation coefficient of the model output and the actual values on the training partition", new DoubleValue()));
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174 | Add(new Result(TestSquaredCorrelationResultName, "Squared Pearson's correlation coefficient of the model output and the actual values on the test partition", new DoubleValue()));
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175 | Add(new Result(TrainingRelativeErrorResultName, "Average of the relative errors of the model output and the actual values on the training partition", new DoubleValue()));
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176 | Add(new Result(TestRelativeErrorResultName, "Average of the relative errors of the model output and the actual values on the test partition", new DoubleValue()));
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177 | Add(new Result(TrainingNormalizedMeanSquaredErrorResultName, "Normalized mean of squared errors of the model on the training partition", new DoubleValue()));
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178 | Add(new Result(TestNormalizedMeanSquaredErrorResultName, "Normalized mean of squared errors of the model on the test partition", new DoubleValue()));
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179 | Add(new Result(TrainingDirectionalSymmetryResultName, "The average directional symmetry of the forecasts of the model on the training partition", new DoubleValue()));
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180 | Add(new Result(TestDirectionalSymmetryResultName, "The average directional symmetry of the forecasts of the model on the test partition", new DoubleValue()));
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181 | Add(new Result(TrainingWeightedDirectionalSymmetryResultName, "The average weighted directional symmetry of the forecasts of the model on the training partition", new DoubleValue()));
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182 | Add(new Result(TestWeightedDirectionalSymmetryResultName, "The average weighted directional symmetry of the forecasts of the model on the test partition", new DoubleValue()));
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183 | Add(new Result(TrainingTheilsUStatisticLastResultName, "The average Theil's U statistic (reference: previous value) of the forecasts of the model on the training partition", new DoubleValue()));
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184 | Add(new Result(TestTheilsUStatisticLastResultName, "The average Theil's U statistic (reference: previous value) of the forecasts of the model on the test partition", new DoubleValue()));
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185 | Add(new Result(TrainingTheilsUStatisticMeanResultName, "The average Theil's U statistic (reference: mean value) of the forecasts of the model on the training partition", new DoubleValue()));
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186 | Add(new Result(TestTheilsUStatisticMeanResultName, "The average Theil's U statistic (reference: mean value) of the forecasts of the model on the test partition", new DoubleValue()));
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187 | Add(new Result(TrainingTheilsUStatisticMaResultName, "The average Theil's U statistic (reference: moving average) of the forecasts of the model on the training partition", new DoubleValue()));
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188 | Add(new Result(TestTheilsUStatisticMaResultName, "The average Theil's U statistic (reference: moving average) of the forecasts of the model on the test partition", new DoubleValue()));
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189 | horizon = 1;
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190 | }
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191 |
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192 |
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193 | protected void CalculateResults() {
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194 | string targetVariable = ProblemData.TargetVariable;
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195 |
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196 | var trainingMseCalculators = new OnlineMeanSquaredErrorCalculator();
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197 | var testMseCalculators = new OnlineMeanSquaredErrorCalculator();
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198 | var trainingMaeCalculators = new OnlineMeanAbsoluteErrorCalculator();
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199 | var testMaeCalculators = new OnlineMeanAbsoluteErrorCalculator();
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200 | var trainingRSquaredCalculators = new OnlinePearsonsRSquaredCalculator();
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201 | var testRSquaredCalculators = new OnlinePearsonsRSquaredCalculator();
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202 | var trainingRelErrorCalculators = new OnlineMeanAbsolutePercentageErrorCalculator();
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203 | var testRelErrorCalculators = new OnlineMeanAbsolutePercentageErrorCalculator();
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204 | var trainingNmseCalculators = new OnlineNormalizedMeanSquaredErrorCalculator();
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205 | var testNmseCalculators = new OnlineNormalizedMeanSquaredErrorCalculator();
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206 |
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207 | var trainingDsCalculators = new OnlineDirectionalSymmetryCalculator();
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208 | var testDsCalculators = new OnlineDirectionalSymmetryCalculator();
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209 | var trainingWdsCalculators = new OnlineWeightedDirectionalSymmetryCalculator();
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210 | var testWdsCalculators = new OnlineWeightedDirectionalSymmetryCalculator();
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211 | var trainingTheilsULastCalculators = new OnlineTheilsUStatisticCalculator();
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212 | var testTheilsULastCalculators = new OnlineTheilsUStatisticCalculator();
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213 | var trainingTheilsUMeanCalculators = new OnlineTheilsUStatisticCalculator();
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214 | var testTheilsUMeanCalculators = new OnlineTheilsUStatisticCalculator();
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215 | var trainingTheilsUMovingAverageCalculators = new OnlineTheilsUStatisticCalculator();
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216 | var testTheilsUMovingAverageCalculators = new OnlineTheilsUStatisticCalculator();
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217 |
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218 | double mean = ProblemData.Dataset.GetDoubleValues(targetVariable, ProblemData.TrainingIndizes).Average();
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219 |
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220 | foreach (var row in ProblemData.TrainingIndizes) {
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221 | if (row + horizon < ProblemData.Dataset.Rows) {
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222 | var actualContinuation = ProblemData.Dataset.GetDoubleValues(targetVariable, Enumerable.Range(row, horizon)).ToList();
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223 | var prognosedContinuation = GetPrognosedValues(new List<int> { row }, horizon).First().ToList();
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224 |
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225 | int maWindow = 10 * horizon;
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226 | var movingAverageContinuation = from h in Enumerable.Range(0, horizon)
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227 | select (from r in Enumerable.Range(row + h - maWindow, maWindow - h)
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228 | where r > 0
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229 | select ProblemData.Dataset.GetDoubleValue(targetVariable, r)
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230 | ).Average();
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231 |
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232 | double startValue = ProblemData.Dataset.GetDoubleValue(targetVariable, row - 1);
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233 |
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234 | trainingDsCalculators.Add(startValue, actualContinuation, prognosedContinuation);
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235 | trainingWdsCalculators.Add(startValue, actualContinuation, prognosedContinuation);
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236 | trainingTheilsULastCalculators.Add(startValue, actualContinuation, prognosedContinuation);
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237 | trainingTheilsUMeanCalculators.Add(startValue, actualContinuation.Select(x => mean), actualContinuation, prognosedContinuation);
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238 | trainingTheilsUMovingAverageCalculators.Add(startValue, movingAverageContinuation, actualContinuation, prognosedContinuation);
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239 |
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240 | var actualContinuationEnumerator = actualContinuation.GetEnumerator();
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241 | var prognosedContinuationEnumerator = prognosedContinuation.GetEnumerator();
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242 |
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243 | while (actualContinuationEnumerator.MoveNext() & prognosedContinuationEnumerator.MoveNext()) {
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244 | trainingMseCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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245 | trainingMaeCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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246 | trainingRelErrorCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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247 | trainingRSquaredCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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248 | trainingNmseCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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249 | }
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250 | if (actualContinuationEnumerator.MoveNext() | prognosedContinuationEnumerator.MoveNext())
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251 | throw new ArgumentException("Different number of elements in Actual continuation and prognosed continuation.");
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252 | }
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253 | }
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254 |
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255 | mean = ProblemData.Dataset.GetDoubleValues(targetVariable, ProblemData.TestIndizes).Average();
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256 | foreach (var row in ProblemData.TestIndizes) {
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257 | if (row + horizon < ProblemData.Dataset.Rows) {
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258 | var actualContinuation = ProblemData.Dataset.GetDoubleValues(targetVariable, Enumerable.Range(row, horizon)).ToList();
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259 | var prognosedContinuation = GetPrognosedValues(new List<int> { row }, horizon).First().ToList();
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260 |
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261 | int maWindow = 10 * horizon;
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262 | var movingAverageContinuation = from h in Enumerable.Range(0, horizon)
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263 | select (from r in Enumerable.Range(row + h - maWindow, maWindow - h)
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264 | where r > 0
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265 | select ProblemData.Dataset.GetDoubleValue(targetVariable, r)
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266 | ).Average();
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267 |
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268 | double startValue = ProblemData.Dataset.GetDoubleValue(targetVariable, row - 1);
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269 | testDsCalculators.Add(startValue, actualContinuation, prognosedContinuation);
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270 | testWdsCalculators.Add(startValue, actualContinuation, prognosedContinuation);
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271 | testTheilsULastCalculators.Add(startValue, actualContinuation, prognosedContinuation);
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272 | testTheilsUMeanCalculators.Add(startValue, actualContinuation.Select(x => mean), actualContinuation, prognosedContinuation);
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273 | testTheilsUMovingAverageCalculators.Add(startValue, movingAverageContinuation, actualContinuation, prognosedContinuation);
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274 |
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275 | var actualContinuationEnumerator = actualContinuation.GetEnumerator();
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276 | var prognosedContinuationEnumerator = prognosedContinuation.GetEnumerator();
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277 | while (actualContinuationEnumerator.MoveNext() & prognosedContinuationEnumerator.MoveNext()) {
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278 | testMseCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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279 | testMaeCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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280 | testRelErrorCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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281 | testRSquaredCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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282 | testNmseCalculators.Add(actualContinuationEnumerator.Current, prognosedContinuationEnumerator.Current);
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283 | }
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284 | if (actualContinuationEnumerator.MoveNext() | prognosedContinuationEnumerator.MoveNext())
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285 | throw new ArgumentException("Different number of elements in Actual continuation and prognosed continuation.");
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286 | }
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287 | }
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288 |
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289 | TrainingMeanSquaredError = trainingMseCalculators.ErrorState == OnlineCalculatorError.None ? trainingMseCalculators.Value : double.PositiveInfinity;
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290 | TestMeanSquaredError = testMseCalculators.ErrorState == OnlineCalculatorError.None ? testMseCalculators.Value : double.PositiveInfinity;
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291 | TrainingMeanAbsoluteError = trainingMaeCalculators.ErrorState == OnlineCalculatorError.None ? trainingMaeCalculators.Value : double.PositiveInfinity;
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292 | TestMeanAbsoluteError = testMaeCalculators.ErrorState == OnlineCalculatorError.None ? testMaeCalculators.Value : double.PositiveInfinity;
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293 | TrainingRelativeError = trainingRelErrorCalculators.ErrorState == OnlineCalculatorError.None ? trainingRelErrorCalculators.Value : double.PositiveInfinity;
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294 | TestRelativeError = testRelErrorCalculators.ErrorState == OnlineCalculatorError.None ? testRelErrorCalculators.Value : double.PositiveInfinity;
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295 | TrainingRSquared = trainingRSquaredCalculators.ErrorState == OnlineCalculatorError.None ? trainingRSquaredCalculators.Value : 0.0;
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296 | TestRSquared = testRSquaredCalculators.ErrorState == OnlineCalculatorError.None ? testRSquaredCalculators.Value : 0.0;
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297 | TrainingNormalizedMeanSquaredError = trainingNmseCalculators.ErrorState == OnlineCalculatorError.None ? trainingNmseCalculators.Value : double.PositiveInfinity;
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298 | TestNormalizedMeanSquaredError = testNmseCalculators.ErrorState == OnlineCalculatorError.None ? testNmseCalculators.Value : double.PositiveInfinity;
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299 |
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300 | TrainingDirectionalSymmetry = trainingDsCalculators.ErrorState == OnlineCalculatorError.None ? trainingDsCalculators.Value : 0.0;
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301 | TestDirectionalSymmetry = testDsCalculators.ErrorState == OnlineCalculatorError.None ? testDsCalculators.Value : 0.0;
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302 | TrainingWeightedDirectionalSymmetry = trainingWdsCalculators.ErrorState == OnlineCalculatorError.None ? trainingWdsCalculators.Value : double.PositiveInfinity;
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303 | TestWeightedDirectionalSymmetry = testWdsCalculators.ErrorState == OnlineCalculatorError.None ? testWdsCalculators.Value : double.PositiveInfinity;
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304 | TrainingTheilsUStatisticLast = trainingTheilsULastCalculators.ErrorState == OnlineCalculatorError.None ? trainingTheilsULastCalculators.Value : double.PositiveInfinity;
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305 | TestTheilsUStatisticLast = testTheilsULastCalculators.ErrorState == OnlineCalculatorError.None ? testTheilsULastCalculators.Value : double.PositiveInfinity;
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306 | TrainingTheilsUStatisticMean = trainingTheilsUMeanCalculators.ErrorState == OnlineCalculatorError.None ? trainingTheilsUMeanCalculators.Value : double.PositiveInfinity;
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307 | TestTheilsUStatisticMean = testTheilsUMeanCalculators.ErrorState == OnlineCalculatorError.None ? testTheilsUMeanCalculators.Value : double.PositiveInfinity;
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308 | TrainingTheilsUStatisticMovingAverage = trainingTheilsUMovingAverageCalculators.ErrorState == OnlineCalculatorError.None ? trainingTheilsUMovingAverageCalculators.Value : double.PositiveInfinity;
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309 | TestTheilsUStatisticMovingAverage = testTheilsUMovingAverageCalculators.ErrorState == OnlineCalculatorError.None ? testTheilsUMovingAverageCalculators.Value : double.PositiveInfinity;
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310 | }
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311 | }
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312 | }
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