public void SetupForEvolution(Population the_population, FitnessDirection fd )
{
this.direction = fd;
this.CurrentGeneration = new Generation(0);
this.CurrentGeneration.population = the_population ;
if ( this.CurrentGeneration.population.IsEmpty )
{
throw new GeneticError("Cannot start with empty population");
}
}
public void SortPopulation( Population p, FitnessDirection fd )
{
if ( fd==FitnessDirection.Minimize )
{
p.Sort( Environment.m_min_comparer );
// Double-check the sort
if (p[ 0 ].Fitness >p[ p.Size-1 ].Fitness )
{
throw new GeneticError("Sort did not work");
}
}
else
{
p.Sort( Environment.m_max_comparer );
// Double-check the sort
if (p[ 0 ].Fitness <p[ p.Size-1 ].Fitness )
{
throw new GeneticError("Sort did not work");
}
}
}
Population GetRandomMembersFromPopulation( Population p, int num)
{
Population organisms = new Population( p.Capacity );
for (int i=0;i<num;i++)
{
int index = p.GetIndexOfRandomMember( );
Organism p0 = p[ index ];
organisms.AddOrganism( p0 );
}
return organisms;
}
public Organism FindBestOrganismInPopulation( Population p)
{
if ( p.IsEmpty )
{
throw new GeneticError("Is empty");
}
Organism best_organism = p[ 0 ];
return best_organism;
}
public Generation(int id)
{
this.population = null;
this.ID = id;
this.create_date = System.DateTime.Now;
}