Beispiel #1
0
        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 %
            }
        }