[2891] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[14185] | 3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2891] | 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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[4722] | 22 | using HeuristicLab.Common;
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[2891] | 23 | using HeuristicLab.Core;
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| 24 | using HeuristicLab.Data;
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| 25 | using HeuristicLab.Operators;
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[11970] | 26 | using HeuristicLab.Optimization;
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[2891] | 27 | using HeuristicLab.Parameters;
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[14927] | 28 | using HeuristicLab.Persistence;
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[2891] | 29 |
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| 30 | namespace HeuristicLab.Analysis {
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| 31 | /// <summary>
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[3662] | 32 | /// An operator which calculates the best, average and worst quality of solutions in the scope tree.
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[2891] | 33 | /// </summary>
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[3662] | 34 | [Item("BestAverageWorstQualityCalculator", "An operator which calculates the best, average and worst quality of solutions in the scope tree.")]
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[14927] | 35 | [StorableType("c7c40ca7-5402-4b21-9821-461b30cb1870")]
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[11970] | 36 | public sealed class BestAverageWorstQualityCalculator : SingleSuccessorOperator, ISingleObjectiveOperator {
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[3662] | 37 | public ValueLookupParameter<BoolValue> MaximizationParameter {
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| 38 | get { return (ValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
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[2891] | 39 | }
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[3662] | 40 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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| 41 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
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[2891] | 42 | }
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[3662] | 43 | public ValueLookupParameter<DoubleValue> BestQualityParameter {
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| 44 | get { return (ValueLookupParameter<DoubleValue>)Parameters["BestQuality"]; }
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[2891] | 45 | }
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[3662] | 46 | public ValueLookupParameter<DoubleValue> AverageQualityParameter {
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| 47 | get { return (ValueLookupParameter<DoubleValue>)Parameters["AverageQuality"]; }
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[2891] | 48 | }
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[3662] | 49 | public ValueLookupParameter<DoubleValue> WorstQualityParameter {
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| 50 | get { return (ValueLookupParameter<DoubleValue>)Parameters["WorstQuality"]; }
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[2891] | 51 | }
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| 52 |
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[4722] | 53 | #region Storing & Cloning
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| 54 | [StorableConstructor]
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[15018] | 55 | private BestAverageWorstQualityCalculator(StorableConstructorFlag deserializing) : base(deserializing) { }
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[4722] | 56 | private BestAverageWorstQualityCalculator(BestAverageWorstQualityCalculator original, Cloner cloner) : base(original, cloner) { }
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| 57 | public override IDeepCloneable Clone(Cloner cloner) {
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| 58 | return new BestAverageWorstQualityCalculator(this, cloner);
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| 59 | }
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| 60 | #endregion
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[2891] | 61 | public BestAverageWorstQualityCalculator()
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| 62 | : base() {
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[3048] | 63 | Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the current problem is a maximization problem, otherwise false."));
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[3662] | 64 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The value contained in the scope tree which represents the solution quality."));
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[3048] | 65 | Parameters.Add(new ValueLookupParameter<DoubleValue>("BestQuality", "The quality value of the best solution."));
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| 66 | Parameters.Add(new ValueLookupParameter<DoubleValue>("AverageQuality", "The average quality of all solutions."));
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| 67 | Parameters.Add(new ValueLookupParameter<DoubleValue>("WorstQuality", "The quality value of the worst solution."));
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[6051] | 68 |
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| 69 | BestQualityParameter.Hidden = true;
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| 70 | AverageQualityParameter.Hidden = true;
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| 71 | WorstQualityParameter.Hidden = true;
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[2891] | 72 | }
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| 73 |
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| 74 |
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| 75 | public override IOperation Apply() {
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[3048] | 76 | ItemArray<DoubleValue> qualities = QualityParameter.ActualValue;
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[2891] | 77 | bool maximization = MaximizationParameter.ActualValue.Value;
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| 78 |
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| 79 | if (qualities.Length > 0) {
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| 80 | double min = double.MaxValue, max = double.MinValue, sum = 0.0;
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| 81 | for (int i = 0; i < qualities.Length; i++) {
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| 82 | if (qualities[i].Value < min) min = qualities[i].Value;
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| 83 | if (qualities[i].Value > max) max = qualities[i].Value;
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| 84 | sum += qualities[i].Value;
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| 85 | }
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| 86 | if (!maximization) {
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| 87 | double temp = min;
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| 88 | min = max;
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| 89 | max = temp;
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| 90 | }
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[2924] | 91 |
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[3048] | 92 | DoubleValue best = BestQualityParameter.ActualValue;
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| 93 | if (best == null) BestQualityParameter.ActualValue = new DoubleValue(max);
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[2924] | 94 | else best.Value = max;
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[3048] | 95 | DoubleValue average = AverageQualityParameter.ActualValue;
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| 96 | if (average == null) AverageQualityParameter.ActualValue = new DoubleValue(sum / qualities.Length);
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[2924] | 97 | else average.Value = sum / qualities.Length;
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[3048] | 98 | DoubleValue worst = WorstQualityParameter.ActualValue;
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| 99 | if (worst == null) WorstQualityParameter.ActualValue = new DoubleValue(min);
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[2924] | 100 | else worst.Value = min;
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[2891] | 101 | }
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| 102 | return base.Apply();
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| 103 | }
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| 104 | }
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| 105 | }
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