private void TestSelector(ISelector selector, int tolerance, params double[] fitnesses)
{
int runCount = 100000;
Population candidates = this.GenerateCandidates(fitnesses.ToArray());
Dictionary <double, int> proportions = fitnesses.ToDictionary(i => i, i => 0);
selector.SetCandidates(candidates);
candidates.UpdateFitnessProportions();
for (int i = 0; i <= runCount - 1; i++)
{
var candidate = selector.PickCandidates(1)[0];
proportions[candidate.Fitness] += 1;
}
double totalFitness = fitnesses.Sum();
foreach (KeyValuePair <double, int> proportion in proportions)
{
double fitnessProportion = proportion.Key / totalFitness;
Assert.AreEqual(fitnessProportion * runCount, proportion.Value, runCount * fitnessProportion / tolerance);
// within 1/tolerance %
}
}
private void TestSelector(ISelector selector, int tolerance, params double[] fitnesses)
{
int runCount = 100000;
Population candidates = this.GenerateCandidates(fitnesses.ToArray());
Dictionary<double, int> proportions = fitnesses.ToDictionary(i => i, i => 0);
selector.SetCandidates(candidates);
candidates.UpdateFitnessProportions();
for (int i = 0; i <= runCount - 1; i++)
{
var candidate = selector.PickCandidates(1)[0];
proportions[candidate.Fitness] += 1;
}
double totalFitness = fitnesses.Sum();
foreach (KeyValuePair<double, int> proportion in proportions)
{
double fitnessProportion = proportion.Key / totalFitness;
Assert.AreEqual(fitnessProportion * runCount, proportion.Value, runCount * fitnessProportion / tolerance);
// within 1/tolerance %
}
}