public Genotype[] Select(Specie[] species, int offspringCount)
{
var sumMeanAdjustedFitness = GetSumMeanAdjustedFitness(species);
var orderedSpecies = species.OrderByDescending(sp => sp.MeanAdjustedFitness)
.ToList();
var offspring = orderedSpecies
.SelectMany(sp => GetOffspring(sp, offspringCount, sumMeanAdjustedFitness))
.Take(offspringCount)
.ToList();
// Fill gap by producing additional offspring from top performers
var diff = offspringCount - offspring.Count;
if (diff > 0) {
var additionalOffspring = orderedSpecies
.Take(diff)
.Select(sp => sp.ProduceOffspring(crossover))
.ToList();
Debug.LogFormat("Producing {0} additional offspring", additionalOffspring.Count);
offspring.AddRange(additionalOffspring);
}
var selectedOffspring = offspring.ToArray();
Assert.AreEqual(offspringCount, selectedOffspring.Length,
"Must select the correct number of offspring");
return selectedOffspring;
}
public List<Phenotype> Select(Specie[] species, int eliteCount)
{
var orderedSpecies = species.OrderByDescending(sp => sp.BestFitness);
var elites = orderedSpecies.Select(sp => {
var orderedSpecie = sp.OrderByDescending(pt => pt.Fitness);
return orderedSpecie.First();
}).Take(eliteCount).ToList();
Assert.AreEqual(eliteCount, elites.Count,
"Must return the expected number of elites");
return elites;
}
