Last change
on this file since 72 was
70,
checked in by swagner, 17 years ago
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Worked on ticket #15
- added crossover and manipulation operators implemented by adoppelb
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File size:
1.2 KB
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1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Text;
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4 | using HeuristicLab.Core;
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5 | using HeuristicLab.Data;
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6 |
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7 | namespace HeuristicLab.RealVector {
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8 | class AverageCrossover : RealVectorCrossoverBase {
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9 | public override string Description {
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10 | get { return "Average (Continuous) crossover for real vectors."; }
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11 | }
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12 |
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13 | public static double[] Apply(IScope scope, IRandom random, double[] parent1, double[] parent2) {
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14 | int length = parent1.Length;
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15 | double[] result = new double[length];
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16 | double min = scope.GetVariableValue<DoubleData>("Minimum", true).Data;
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17 | double max = scope.GetVariableValue<DoubleData>("Maximum", true).Data;
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18 |
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19 | for (int i = 0; i < length; i++) {
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20 | if (random.NextDouble() < 0.5) {
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21 | result[i] = (parent1[i] + parent2[i]) / 2;
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22 | } else {
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23 | result[i] = parent1[i];
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24 | }
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25 |
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26 | // check borders
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27 | if (result[i] < min) { result[i] = min; }
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28 | if (result[i] > max) { result[i] = max; }
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29 | }
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30 |
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31 | return result;
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32 | }
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33 |
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34 | protected override double[] Cross(IScope scope, IRandom random, double[] parent1, double[] parent2) {
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35 | return Apply(scope, random, parent1, parent2);
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36 | }
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37 | }
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38 | }
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