/// <summary>
/// One-point recombination (crossover).
/// </summary>
///
/// <param name="pair">Pair chromosome to crossover with.</param>
///
public void RecombinationOnePoint( GEPChromosome pair )
{
// check for correct pair
if ( ( pair.length == length ) )
{
// crossover point
int crossOverPoint = rand.Next( length - 1 ) + 1;
// length of chromosome to be crossed
int crossOverLength = length - crossOverPoint;
// swap parts of chromosomes
Recombine( genes, pair.genes, crossOverPoint, crossOverLength );
}
}
/// <summary>
/// Two point recombination (crossover).
/// </summary>
///
/// <param name="pair">Pair chromosome to crossover with.</param>
///
public void RecombinationTwoPoint( GEPChromosome pair )
{
// check for correct pair
if ( ( pair.length == length ) )
{
// crossover point
int crossOverPoint = rand.Next( length - 1 ) + 1;
// length of chromosome to be crossed
int crossOverLength = length - crossOverPoint;
// if crossover length already equals to 1, then it becomes
// usual one point crossover. otherwise crossover length
// also randomly chosen
if ( crossOverLength != 1 )
{
crossOverLength = rand.Next( crossOverLength - 1 ) + 1;
}
// swap parts of chromosomes
Recombine( genes, pair.genes, crossOverPoint, crossOverLength );
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GEPChromosome"/> class.
/// </summary>
///
/// <param name="source">Source GEP chromosome to clone from.</param>
///
protected GEPChromosome( GEPChromosome source )
{
headLength = source.headLength;
length = source.length;
fitness = source.fitness;
// allocate genes array
genes = new IGPGene[length];
// copy genes
for ( int i = 0; i < length; i++ )
genes[i] = source.genes[i].Clone( );
}
