Best Java code snippets using io.jenetics.engine.Engine$Builder.individualCreationRetries (Showing top 3 results out of 315)

public static void main(final String[] args) {
  final RectFill problem = new RectFill(new Rect(0, 100, 0, 100));
  final Engine<AnyGene<Rect>, Double> engine = Engine.builder(problem)
    .individualCreationRetries(10)
    .genotypeValidator(gt -> true)
    .offspringSelector(new RouletteWheelSelector<>())
    .alterers(
      new SwapMutator<>(),
      new SinglePointCrossover<>())
    .build();
  final ISeq<Rect> best = problem.codec().decode(
    engine.stream()
      .limit(byFixedGeneration(10))
      .collect(EvolutionResult.toBestGenotype())
  );
  System.out.println(best);
}

/**
 * Create a new evolution {@code Engine.Builder} initialized with the values
 * of the current evolution {@code Engine}. With this method, the evolution
 * engine can serve as a template for a new one.
 *
 * @return a new engine builder
 */
public Builder<G, C> builder() {
  return new Builder<G, C>(_genotypeFactory, _fitnessFunction)
    .alterers(_alterer)
    .clock(_clock)
    .evaluator(_evaluator)
    .executor(_executor.get())
    .fitnessScaler(_fitnessScaler)
    .maximalPhenotypeAge(_maximalPhenotypeAge)
    .offspringFraction((double)_offspringCount/(double)getPopulationSize())
    .offspringSelector(_offspringSelector)
    .optimize(_optimize)
    .phenotypeValidator(_validator)
    .populationSize(getPopulationSize())
    .survivorsSelector(_survivorsSelector)
    .individualCreationRetries(_individualCreationRetries)
    .mapping(_mapper);
}

/**
 * Create a new builder, with the current configuration.
 *
 * @since 3.1
 *
 * @return a new builder, with the current configuration
 */
@Override
public Builder<G, C> copy() {
  return new Builder<G, C>(_genotypeFactory, _fitnessFunction)
    .alterers(_alterer)
    .clock(_clock)
    .executor(_executor)
    .evaluator(_evaluator)
    .fitnessScaler(_fitnessScaler)
    .maximalPhenotypeAge(_maximalPhenotypeAge)
    .offspringFraction(_offspringFraction)
    .offspringSelector(_offspringSelector)
    .phenotypeValidator(_validator)
    .optimize(_optimize)
    .populationSize(_populationSize)
    .survivorsSelector(_survivorsSelector)
    .individualCreationRetries(_individualCreationRetries)
    .mapping(_mapper);
}