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source: branches/3.0/sources/HeuristicLab.RealVector/ContinuousManipulator.cs @ 6514

Last change on this file since 6514 was 295, checked in by swagner, 16 years ago

Merged fix of ticket #161 (r292:294) from trunk into 3.0 release branch

File size: 1.8 KB
Line 
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;
23using System.Collections.Generic;
24using System.Text;
25using HeuristicLab.Core;
26
27namespace HeuristicLab.RealVector {
28  public class ContinuousManipulator : RealVectorManipulatorBase {
29    public override string Description {
30      get { return "This operator randomly selects two elements of the vector, calculates its average value and replaces the first selected element with the new value."; }
31    }
32
33    public static double[] Apply(IRandom random, double[] vector) {
34      int length = vector.Length;
35      int index1, index2;
36      index1 = random.Next(length);
37      index2 = random.Next(length);
38
39      while (index2 == index1) {
40        index2 = random.Next(length);
41      }
42
43      vector[index1] = (vector[index1] + vector[index2]) / 2;
44
45      return vector;
46    }
47
48    protected override double[] Manipulate(IScope scope, IRandom random, double[] vector) {
49      return Apply(random, vector);
50    }
51  }
52}
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