コード例 #1
0
  @Test
  public void testMutation() {
    Portfolio portfolio = new Portfolio(3);
    portfolio.getPortfolio().set(0, 0.25);
    portfolio.getPortfolio().set(1, 0.5);
    portfolio.getPortfolio().set(2, 0.25);

    GeneticAlgUtils.mutate(portfolio);
    System.out.println(portfolio);
  }
コード例 #2
0
  @Test
  public void testFitnessFunctionCalculation() {

    GeneticAlgorithmImpl gen = new GeneticAlgorithmImpl(2, 2, 0.2, 0.1, 0.3, dataSource);

    Portfolio portfolio = new Portfolio(2);
    portfolio.getPortfolio().set(0, 0.5);
    portfolio.getPortfolio().set(1, 0.5);

    System.out.println(gen.calculateFitness(portfolio, 0));
    assertEquals(1.0, gen.calculateFitness(portfolio, 0), 0.01);
  }
コード例 #3
0
  @Test
  public void testCrossover() {
    Portfolio parentA = new Portfolio(2);
    parentA.getPortfolio().set(0, 0.5);
    parentA.getPortfolio().set(1, 0.5);

    Portfolio parentB = new Portfolio(2);
    parentB.getPortfolio().set(0, 1.0);
    parentB.getPortfolio().set(1, 0.0);

    Portfolio child = GeneticAlgorithmImpl.crossover(parentA, parentB);

    assertEquals(0.75, child.getPortfolio().get(0), 0.001);
    assertEquals(0.25, child.getPortfolio().get(1), 0.001);
  }