protected void PreBuildActions()
{
if (environment == null && chromosomeEvaluator.GetType() != typeof(BassicChromosomeEvaluator))
{
environment = new DefaultEnvironment();
}
if (mutationManager == null)
{
mutationManager = new BasicMutationProbabilityManager(mutationProbability);
}
}
public GeneticSearchOptions(int populationSize, List <IStopManager> stopManagers, bool includeAllHistory,
List <IPopulationRenwalManager> populationRenwalManagers, double elitePercentage, IMutationProbabilityManager mutationManager, List <IPopulationConverter> populationConverters, IChromosomeEvaluator chromosomeEvaluator)
{
StopManagers = stopManagers;
IncludeAllHistory = includeAllHistory;
PopulationRenwalManagers = populationRenwalManagers;
AssertIsBetweenZeroAndOne(elitePercentage, nameof(elitePercentage));
ElitePercentage = elitePercentage;
MutationManager = mutationManager;
PopulationConverters = populationConverters;
ChromosomeEvaluator = chromosomeEvaluator;
PopulationSize = populationSize > 0
? populationSize
: throw new GeneticAlgorithmException(nameof(populationSize) + " must be greater then zero");
}
public ChildrenGenerator(ICrossoverManager crossoverManager, IMutationProbabilityManager mutationManager, ISelectionStrategy selectionStrategy)
{
this.crossoverManager = crossoverManager;
this.mutationManager = mutationManager;
this.selectionStrategy = selectionStrategy;
}
/// <summary>
/// A Custom Mutation Manager lets you dynamically determine the probability of a mutation based on the current population.
/// For instance, you might want to set a high mutation probability for a few generations if the population is homogeneous, and lower it while the population is diversified.
/// </summary>
public GeneticSearchEngineBuilder SetCustomMutationProbabilityManager(IMutationProbabilityManager manager)
{
mutationManager = manager;
return(this);
}
