static void Main(string[] args)
{
var problem = Problem.Read("Fitness\\sin-data.txt");
var code =
"((((0 = (0 - ((4 <= X0) / 9.5))) OR ((1.5 XOR 0) - (X0 AND 1.5))) XOR (((2 OR 7.1) / Y0)=>(Y0 / (Y1 = Y1)))) - ((((X0 + X0) = (Y1=>0)) XOR (Y0 = (3 >= X0))) > Y0))";
var program = Parser.Parser.Parse(Tokenizer.Tokenizer.Tokenize(code));
var fitness = new FitnessEvaluation(program, problem);
var stringBuilder = new StringBuilder();
fitness.Evaluate(stringBuilder);
FitnessEvaluation simplifiedFitness;
do
{
gp.Program simplifiedProgram = program.Simplify(fitness, stringBuilder);
if (simplifiedProgram == null || simplifiedProgram.ToString() == program.ToString())
{
break;
}
simplifiedFitness = new FitnessEvaluation(simplifiedProgram, problem);
simplifiedFitness.Evaluate(false, stringBuilder);
program = simplifiedProgram;
} while (fitness.ErrorSum == simplifiedFitness.ErrorSum);
Console.Out.Write(stringBuilder);
}
public void Evolve()
{
var genomes = geneticManager.GenerationManager.CurrentGeneration.Genomes;
foreach (var genome in genomes)
{
genome.Fitness = fitnessEvaluation.Evaluate(targetSum, genome);
}
var orderedGenomes = genomes.OrderByDescending(g => g.Fitness)
.ToArray();
geneticManager.GenerationManager
.CurrentGeneration
.Genomes = orderedGenomes;
if (Math.Abs(orderedGenomes.First().Fitness - targetSum) < 0.1)
{
targetReached = true;
}
geneticManager.Evolve();
}