public void eval(
int seed, String parent1Expression, String parent2Expression, String offspringExpression) {
EncogProgramContext context = new EncogProgramContext();
StandardExtensions.createNumericOperators(context.getFunctions());
// parent 1
EncogProgram parent1 = new EncogProgram(context);
parent1.getVariables().setVariable("x", 1);
parent1.compileExpression(parent1Expression);
// parent 2
EncogProgram parent2 = new EncogProgram(context);
parent2.getVariables().setVariable("x", 1);
parent2.compileExpression(parent2Expression);
// offspring
EncogProgram[] offspring = parent1.allocateOffspring(1);
EvolutionaryOperator cross = new SubtreeCrossover();
Genome[] parents = {parent1, parent2};
cross.performOperation(new Random(seed), parents, 0, offspring, 0);
offspring[0].getVariables().setVariable("x", 1);
RenderCommonExpression render = new RenderCommonExpression();
// Assert.assertEquals(offspringExpression,render.render(offspring[0]));
}
public PrgPopulation(EncogProgramContext theContext, GenomeFactory theGenomeFactory) {
super(theContext.getParams().getPopulationSize(), theGenomeFactory);
GeneticTrainingParams params = theContext.getParams();
this.holder =
theContext
.getHolderFactory()
.factor(params.getPopulationSize(), params.getMaxIndividualSize());
this.context = theContext;
}