//当前种群进化
public void Evolve(SelectionType selectionType)
{
Population parents = null;
if (selectionType == SelectionType.Elite)
{
parents = EliteSelect(this);
}
else if (selectionType == SelectionType.Roulette)
{
parents = RouletteSelect(this);
}
else if (selectionType == SelectionType.Hybrid)
{
parents = HybridSelect(this);
}
//crossover 得到子女种群
if (parents != null)
{
var children = Crossover(Chromosomes.Count - parents.Chromosomes.Count);
Chromosomes.Clear();
//将选择出来的所有父母染色体，及他们 crossover 得到的子女，作为新的种群
Chromosomes.AddRange(parents.Chromosomes);
Chromosomes.AddRange(children.Chromosomes);
}
//变异
Mutate();
}
private void MutatePopulation()
{
int populationQty = Chromosomes.Count * 5;
Random rand = new Random();
while (Chromosomes.Count < populationQty)
{
var firstIndex = rand.Next(0, Chromosomes.Count);
var secondIndex = rand.Next(0, Chromosomes.Count);
Chromosomes.AddRange(CrossoverChromosomes(Chromosomes[firstIndex].GetTrainingGenes(), Chromosomes[secondIndex].GetTrainingGenes()));
}
for (int i = 0; i < Chromosomes.Count; i++)
{
Chromosomes[i].Mutate();
}
}
public void JoinPopulation(Population p)
{
Chromosomes.AddRange(p.Chromosomes);
}
