Пример #1
0
 /**
  * Verifies that terminals are passed as clones during evolution and not as references. Thanx a
  * lot Javier for pointing this out nicely!
  *
  * @throws Exception
  * @author Klaus Meffert
  * @since 3.2
  */
 public void testReferenceProblem_0() throws Exception {
   m_gpconf.setPopulationSize(30);
   m_gpconf.setGPFitnessEvaluator(new DeltaGPFitnessEvaluator());
   m_gpconf.setFitnessFunction(new TerminalsOnly());
   m_gpconf.setRandomGenerator(new StockRandomGenerator());
   //
   Class[] types = {CommandGene.IntegerClass};
   Class[][] argTypes = {{}};
   CommandGene[][] nodeSets = {
     {
       new Increment(m_gpconf, CommandGene.IntegerClass, 1),
       new Terminal(m_gpconf, CommandGene.IntegerClass, 1.0d, 10000.0d),
     }
   };
   GPGenotype gen =
       GPGenotype.randomInitialGenotype(m_gpconf, types, argTypes, nodeSets, 10, false);
   gen.getGPPopulation().sort(new TerminalsFirstComparator());
   IGPProgram prog1 = gen.getGPPopulation().getGPProgram(0);
   ProgramChromosome chrom1 = prog1.getChromosome(0);
   Terminal gene1 = (Terminal) chrom1.getGene(0);
   IGPProgram prog2 = gen.getGPPopulation().getGPProgram(1);
   ProgramChromosome chrom2 = prog2.getChromosome(0);
   Terminal gene2 = (Terminal) chrom2.getGene(0);
   assertNotSame(gene1, gene2);
 }
Пример #2
0
 /**
  * @throws Exception
  * @author Klaus Meffert
  * @since 3.0
  */
 public void testConstruct_1() throws Exception {
   GPPopulation pop = new GPPopulation(m_gpconf, 2);
   GPProgram prog = new GPProgram(m_gpconf, 2);
   ProgramChromosome chrom = new ProgramChromosome(m_gpconf, 2, prog);
   prog.setChromosome(0, chrom);
   prog.setChromosome(1, chrom);
   pop.setGPProgram(0, prog);
   pop.setGPProgram(1, prog);
   GPGenotype gen = new GPGenotype(m_gpconf, pop, null, null, null, null, null, 1);
   assertSame(pop, gen.getGPPopulation());
 }
Пример #3
0
 public void testRandomInitialize_0() throws Exception {
   Variable vx;
   Class[] types = {CommandGene.VoidClass, CommandGene.VoidClass, CommandGene.IntegerClass};
   Class[][] argTypes = {{}, {}, {}};
   int[] minDepths = new int[] {3, 4, 1};
   int[] maxDepths = new int[] {3, 4, 1};
   CommandGene[][] nodeSets = {
     {
       CMD_SUB_V_V, // 0
       CMD_CONST1, // 1
       new StoreTerminal(m_gpconf, "mem0", CommandGene.IntegerClass), // 2
       new StoreTerminal(m_gpconf, "mem1", CommandGene.IntegerClass), // 3
     },
     {
       vx = Variable.create(m_gpconf, "X", CommandGene.IntegerClass), // 0
       new AddAndStore(m_gpconf, CommandGene.IntegerClass, "mem2"), // 1
       CMD_FOR, // 2
       new TransferMemory(m_gpconf, "mem2", "mem1"), // 3
       new TransferMemory(m_gpconf, "mem1", "mem0"), // 4
       new ReadTerminal(m_gpconf, CommandGene.IntegerClass, "mem0"), // 5
       new ReadTerminal(m_gpconf, CommandGene.IntegerClass, "mem1"), // 6
       CMD_SUB_V_V_V, // 7
       new Increment(m_gpconf, CommandGene.IntegerClass, -1), // 8
     },
     {}
   };
   // Add commands working with internal memory.
   // ------------------------------------------
   nodeSets[2] =
       CommandFactory.createReadOnlyCommands(
           nodeSets[2], m_gpconf, CommandGene.IntegerClass, "mem", 1, 2, !true);
   // Execute the functionality to test.
   // ----------------------------------
   rn.setNextIntSequence(new int[] {0, 2, 1, 3, 1, 2, 8, 0, 7, 1, 5, 6, 4, 3});
   m_gpconf.setPopulationSize(1);
   GPGenotype gen =
       GPGenotype.randomInitialGenotype(
           m_gpconf,
           types,
           argTypes,
           nodeSets,
           minDepths,
           maxDepths,
           200,
           new boolean[] {true, true, false},
           false);
   GPPopulation pop = gen.getGPPopulation();
   assertEquals(m_gpconf.getPopulationSize(), pop.size());
   // Evaluate program 1
   // ------------------
   IGPProgram p = pop.getGPProgram(0);
   assertEquals(8, p.getChromosome(0).size());
   assertEquals(CMD_SUB_V_V, p.getChromosome(0).getNode(0));
   assertEquals(StoreTerminal.class, p.getChromosome(0).getNode(1).getClass());
   assertSame(CMD_CONST1, p.getChromosome(0).getNode(2));
   assertEquals(SubProgram.class, p.getChromosome(0).getNode(3).getClass());
   //    assertEquals(StoreTerminal.class, p.getChromosome(0).getNode(3).getClass());
   assertSame(CMD_CONST1, p.getChromosome(0).getNode(4));
   // Evaluate program 2
   // ------------------
   int node = 0;
   assertEquals(9, p.getChromosome(1).size());
   assertEquals(CMD_FOR, p.getChromosome(1).getNode(node++));
   assertEquals(Increment.class, p.getChromosome(1).getNode(node++).getClass());
   assertEquals(Variable.class, p.getChromosome(1).getNode(node++).getClass());
   assertEquals(CMD_SUB_V_V_V, p.getChromosome(1).getNode(node++));
   assertEquals(AddAndStore.class, p.getChromosome(1).getNode(node++).getClass());
   assertEquals(ReadTerminal.class, p.getChromosome(1).getNode(node++).getClass());
   assertEquals(ReadTerminal.class, p.getChromosome(1).getNode(node++).getClass());
   assertEquals(TransferMemory.class, p.getChromosome(1).getNode(node++).getClass());
   assertEquals(TransferMemory.class, p.getChromosome(1).getNode(node++).getClass());
   // Evaluate program 3
   // ------------------
   assertEquals(1, p.getChromosome(2).size());
   assertEquals(ReadTerminal.class, p.getChromosome(2).getNode(0).getClass());
   assertEquals(0.0, computeFitness(p, vx), DELTA);
 }