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Viewing changes to DarwinDotNet/Selectors/RandomSelector.cs

  • Committer: Alex Regueiro
  • Date: 2009-03-27 19:00:22 UTC
  • Revision ID: alexreg@gmail.com-20090327190022-f571a7jsdwv3dny5
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DarwinDotNet/Selectors/RandomSelector.cs
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            int selectionMaxIndex = 0; // exclusive maximum
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            int[] selectionIndices = null;
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            if (!this.PerformReplacement)
 
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            if (!PerformReplacement)
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                selectionIndices = new int[count];
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            var newListCapacity = newChromosomes.Capacity;
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            int curSelectionIndex;
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            while (newChromosomes.Count < newListCapacity)
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            {
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                if (!this.PerformReplacement && selectionMaxIndex == 0)
 
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                if (!PerformReplacement && selectionMaxIndex == 0)
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                {
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                    selectionMaxIndex = count;
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                    for (int i = 0; i < selectionMaxIndex; i++)
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                        selectionIndices[i] = i;
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                }
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                if (this.PerformReplacement)
 
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                if (PerformReplacement)
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                {
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                    newChromosomes.Add(chromosomes[_rand.Next(count)].Clone(false));
 
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                    newChromosomes.Add(chromosomes[rand.Next(count)].Clone(false));
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                }
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                else
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                {
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                    curSelectionIndex = _rand.Next(selectionMaxIndex);
 
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                    curSelectionIndex = rand.Next(selectionMaxIndex);
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                    newChromosomes.Add(chromosomes[selectionIndices[curSelectionIndex]].Clone(false));
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                    selectionIndices[curSelectionIndex] = selectionIndices[--selectionMaxIndex];
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                }