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source: trunk/sources/HeuristicLab.RealVector/3.2/CompleteContinuousCrossover.cs @ 1980

Last change on this file since 1980 was 1530, checked in by gkronber, 16 years ago

Moved source files of plugins Hive ... Visualization.Test into version-specific sub-folders. #576

File size: 3.0 KB
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[95]1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
[70]23using System.Collections.Generic;
24using System.Text;
25using HeuristicLab.Core;
26using HeuristicLab.Data;
27
28namespace HeuristicLab.RealVector {
[1184]29  /// <summary>
30  /// Complete continuous crossover for real vectors: for each element of the new vector the average
[1218]31  /// of all parents is calculated.
[1184]32  /// </summary>
[102]33  public class CompleteContinuousCrossover : RealVectorCrossoverBase {
[1184]34    /// <inheritdoc select="summary"/>
[70]35    public override string Description {
[74]36      get { return "Complete continuous crossover for real vectors."; }
[70]37    }
38
[1184]39    /// <summary>
[1218]40    /// Performs a complete continuous crossover of multiple given real vectors.
[1184]41    /// </summary>
42    /// <param name="random">The random number generator.</param>
[1218]43    /// <param name="parents">An array containing the parents that should be crossed.</param>
[1184]44    /// <returns>The newly created real vector, resulting from the complete continuous crossover.</returns>
[1218]45    public static double[] Apply(IRandom random, double[][] parents) {
46      int length = parents[0].Length;
[70]47      double[] result = new double[length];
[1218]48      for (int i = 0; i < length; i++) {
49        double sum = 0.0;
50        for (int j = 0; j < parents.Length; j++)
51          sum += parents[j][i];
52        result[i] = sum / parents.Length;
53      }
[70]54      return result;
55    }
56
[1184]57    /// <summary>
[1218]58    /// Performs a complete continuous crossover operation for multiple given parent real vectors.
[1184]59    /// </summary>
[1218]60    /// <exception cref="InvalidOperationException">Thrown if there are less than two parents.</exception>
[1184]61    /// <param name="scope">The current scope.</param>
[1218]62    /// <param name="random">A random number generator.</param>
63    /// <param name="parents">An array containing the real vectors that should be crossed.</param>
64    /// <returns>The newly created real vector, resulting from the crossover operation.</returns>
65    protected override double[] Cross(IScope scope, IRandom random, double[][] parents) {
66      if (parents.Length < 2) throw new InvalidOperationException("ERROR in CompleteContinuousCrossover: The number of parents is less than 2");
67      return Apply(random, parents);
[70]68    }
69  }
70}
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