public virtual void UpdateTestMeasure(IECChromosome chromosome, ECTestMeasure testMeasure)
{
//checks and gets chromosome history
if (!this.Contains(chromosome))
{
return;
}
var prevTestMeasure = (ECTestMeasure)this.testMeasures[chromosome];
//updates generation number (sets to the youngest between the two)
if (chromosome.Population != null)
{
prevTestMeasure.GenerationNumber =
Math.Min(prevTestMeasure.GenerationNumber, chromosome.Population.GenerationNumber);
}
//averages chromosome fitness with new quantity info
if (testMeasure != null)
{
prevTestMeasure.Value = 0.5f * (prevTestMeasure.Value + testMeasure.Value);
}
//increases generation counter
prevTestMeasure.TimesGenerated++;
}
public ECOptimizationTest(
string id, IECTestsConfig testsConfig, IECChromosome ancestor, FitnessFunction fitnessFunction)
: base(id, testsConfig)
{
this.population = new ECPopulation(testsConfig, ancestor, fitnessFunction);
this.RandomProportionProgress = new StatisticalQuantity(testsConfig.MaxIterations);
}
public virtual int CompareTo(IECChromosome chromosome)
{
if (!(chromosome is ECChromosome))
{
return(-1);
}
return(this.Population == chromosome.Population ? 0 : -1);
}
public int CompareTo(IECChromosome chromosome)
{
if (!(chromosome is SocialGPChromosome))
{
return(-1);
}
return(this.Population == chromosome.Population
? -this.Fitness.CompareTo(chromosome.Fitness)
: -1);
}
public override int CompareTo(IECChromosome chromosome)
{
if (!(chromosome is GPChromosome))
{
return(-1);
}
return
(this.Population == chromosome.Population
? this.Length.CompareTo(((GPChromosome)chromosome).Length)
: -1);
}
public void Add(IECChromosome chromosome, ECTestMeasure testMeasure)
{
//locks from outside access
lock (this.locker)
{
//changes some parameters of the stored chromosome history
if (!this.Contains(chromosome))
{
base.Add(chromosome, testMeasure);
}
else
{
this.UpdateTestMeasure(chromosome, testMeasure);
}
}
}
public ECPopulation(
IECTestsConfig testsConfig, IECChromosome ancestor, FitnessFunction fitnessFunction) :
base(testsConfig.NumTestsPerIteration, ancestor, fitnessFunction, testsConfig.SelectionMethod)
{
this.testsConfig = testsConfig;
//sets population ref to all chromosomes
ancestor.Population = this;
for (var i = 0; i < this.Size; i++)
{
((IECChromosome)this[i]).Population = this;
}
//default values
this.CrossoverRate = DEFAULT_CROSSOVER_RATE;
this.MutationRate = DEFAULT_MUTATION_RATE;
this.RandomSelectionPortion = testsConfig.RandomSelectionPortion;
}
public void UpdateTestMeasure(IECChromosome chromosome)
{
this.UpdateTestMeasure(chromosome, null);
}