public double Evaluate(Program program)
{
Tree.Variable XVariable = program.Variables[0];
double fitness = 0;
for (int x = -5; x < 5; x += 1)
{
XVariable.Value = x;
program.Run();
double desiredResult = (x * x) - x;
fitness += Math.Abs(program.Result - desiredResult);
}
fitness += (double)program.TreeSize / 5D;
return(fitness);
}
public double Evaluate(Program program)
{
Tree.Variable XVariable = program.Variables[0];
double fitness = 0;
int[] Ys = new int[] { 0, 2, -4, 6, -8, 10, -12, 14, -16, 18, -20 };
for (int x = 0; x < 10; x += 1)
{
XVariable.Value = x;
program.Run();
double desiredResult = Ys[x];
fitness += Math.Abs(program.Result - desiredResult);
}
fitness += (double)program.TreeSize / 5D;
return(fitness);
}
public double Evaluate(Program program)
{
Tree.Variable XVariable = program.Variables[0];
double fitness = 0;
int[] Xs = new int[] { 1, 2, 6, 12, 20 };
for (int x = 0; x < 8; x += 1)
{
XVariable.Value = x;
program.Run();
double desiredResult = Xs[x];
fitness += Math.Abs(program.Result - desiredResult);
}
fitness += (double)program.TreeSize / 5D;
return(fitness);
}
public Engine(IFitnessFunction fitnessFunction)
{
m_FitnessFunction = fitnessFunction;
m_Variables = new Tree.Variable[m_FitnessFunction.Variables.Length];
for (int i = 0; i < m_FitnessFunction.Variables.Length; i++)
{
m_Variables[i] = new Tree.Variable(m_FitnessFunction.Variables[i], -1000);
}
m_Functions = new Tree.Func[] {
//new Tree.FuncMultiply(),
new Tree.FuncAdd(),
//new Tree.FuncModulo(),
new Tree.FuncSubtract(),
new Tree.FuncMax(),
new Tree.FuncIf(Tree.Comparator.GreaterThan),
new Tree.FuncIf(Tree.Comparator.Equal),
//new Tree.FuncIf(Tree.Comparator.GreaterThanOrEqual),
new Tree.FuncAnd(),
new Tree.FuncOr()
};
m_Values = new int[] { 0, 1, 2, 3 };
}
public VariableNode(Variable variable)
{
m_Variable = variable;
}