/// <summary>
/// Calculates the metrics for a generation.
/// </summary>
private void CalculateStats(GeneticEnvironment geneticEnvironment, int generationIndex)
{
foreach (Metric metric in this.sortedMetrics)
{
metric.Calculate(geneticEnvironment, generationIndex);
}
}
/// <summary>
/// Calculates the metrics for the <paramref name="environment"/>.
/// </summary>
public static void Calculate(this Metric metric, GeneticEnvironment environment, int generationIndex)
{
foreach (Population population in environment.Populations)
{
ObservableCollection <MetricResult> populationStats = metric.GetResults(population.Index);
MetricResult result = new MetricResult(generationIndex, population.Index, metric.GetResultValue(population), metric);
populationStats.Add(result);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="EnvironmentFitnessEvaluatedEventArgs"/> class.
/// </summary>
/// <param name="environment">The <see cref="GeneticEnvironment"/> being used by the <see cref="GeneticAlgorithm"/>.</param>
/// <param name="generationIndex">The index of the generation that has just been created.</param>
/// <exception cref="ArgumentNullException"><paramref name="environment"/> is null.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="generationIndex"/> is less than zero.</exception>
public EnvironmentFitnessEvaluatedEventArgs(GeneticEnvironment environment, int generationIndex)
{
if (generationIndex < 0)
{
throw new ArgumentOutOfRangeException(nameof(generationIndex), generationIndex, Resources.ErrorMsg_InvalidGenerationIndex);
}
this.Environment = environment ?? throw new ArgumentNullException(nameof(environment));
this.GenerationIndex = generationIndex;
}
/// <summary>
/// Handles the event when the fitness of an environment has been evaluated.
/// </summary>
/// <param name="environment">The environment which has had its fitness evaluated..</param>
/// <param name="generationIndex">Index value of the current generation in the environment.</param>
protected virtual void OnFitnessEvaluated(GeneticEnvironment environment, int generationIndex)
{
}