public virtual LGPProgram CreateProgram(int size, LGPEnvironment env)
{
LGPProgram program = new LGPProgram(this, mOperatorSet.Clone());
program.Create(size);
return(program);
}
protected void Setup()
{
if (mSetup == false)
{
mEnvironment = CreateEnvironment(mConfig);
mMutationInstructionFactory = CreateMutationInstructionFactory(mConfig.GetScript(ScriptNames.MutationInstructionFactory));
mCrossoverInstructionFactory = CreateCrossoverInstructionFactory(mConfig.GetScript(ScriptNames.CrossoverInstructionFactory));
mPopInitInstructionFactory = CreatePopInitInstructionFactory(mConfig.GetScript(ScriptNames.PopInitInstructionFactory));
mReproductionSelectionInstructionFactory = CreateReproductionSelectionInstructionFactory(mConfig.GetScript(ScriptNames.ReproductionSelectionInstructionFactory));
mRegInitInstructionFactory = CreateRegInitInstructionFactory(mConfig.GetScript(ScriptNames.RegInitInstructionFactory));
mSurvivalInstructionFactory = CreateSurvivalInstructionFactory(mConfig.GetScript(ScriptNames.SurvivalInstructionFactory));
mSetup = true;
}
}
protected virtual LGPEnvironment CreateEnvironment(LGPConfig lgpConfig)
{
LGPEnvironment environment = new LGPEnvironment(lgpConfig);
environment.CreateFitnessCaseTriggered += (index) =>
{
return(CreateFitnessCase(index));
};
environment.GetFitnessCaseCountTriggered += () =>
{
return(GetFitnessCaseCount());
};
return(environment);
}
public virtual void EvaluateFitness()
{
//if (InstructionCount == 0)
//{
// throw new ArgumentNullException();
//}
MarkStructuralIntrons();
if (mPop.ObjectiveEvaluator == null)
{
LGPEnvironment env = mPop.Environment;
int fitness_case_count = env.GetFitnessCaseCount();
List <LGPFitnessCase> cases = new List <LGPFitnessCase>();
for (int i = 0; i < fitness_case_count; ++i)
{
LGPFitnessCase fitness_case = env.CreateFitnessCase(i);
ExecuteOnFitnessCase(fitness_case);
cases.Add(fitness_case);
}
mObjectiveValue = EvaluateFitnessFromAllCases(cases);
}
else
{
mObjectiveValue = mPop.ObjectiveEvaluator(this);
}
if (mPop.IsMaximization)
{
mFitness = mObjectiveValue;
}
else
{
mFitness = -mObjectiveValue;
}
mIsFitnessValid = true;
}
