/**
* Evaluates a solution
*
* @param solution The solution to evaluate
* @throws JMException
*/
public void evaluate(Solution solution) throws JMException {
DecisionVariables gen = solution.getDecisionVariables();
double[] x = new double[numberOfVariables_];
double[] f = new double[numberOfObjectives_];
double[] theta = new double[numberOfObjectives_ - 1];
int k = numberOfVariables_ - numberOfObjectives_ + 1;
for (int i = 0; i < numberOfVariables_; i++) x[i] = gen.variables_[i].getValue();
double g = 0.0;
for (int i = numberOfVariables_ - k; i < numberOfVariables_; i++)
g += java.lang.Math.pow(x[i], 0.1);
double t = java.lang.Math.PI / (4.0 * (1.0 + g));
theta[0] = x[0] * java.lang.Math.PI / 2;
for (int i = 1; i < (numberOfObjectives_ - 1); i++) theta[i] = t * (1.0 + 2.0 * g * x[i]);
for (int i = 0; i < numberOfObjectives_; i++) f[i] = 1.0 + g;
for (int i = 0; i < numberOfObjectives_; i++) {
for (int j = 0; j < numberOfObjectives_ - (i + 1); j++) f[i] *= java.lang.Math.cos(theta[j]);
if (i != 0) {
int aux = numberOfObjectives_ - (i + 1);
f[i] *= java.lang.Math.sin(theta[aux]);
} // if
} // for
for (int i = 0; i < numberOfObjectives_; i++) solution.setObjective(i, f[i]);
} // evaluate
/**
* Evaluates a solution
*
* @param solution The solution to evaluate
* @throws JMException
*/
public void evaluate(Solution solution) throws JMException {
DecisionVariables decisionVariables = solution.getDecisionVariables();
double[] x = new double[numberOfVariables_];
double[] fx = new double[numberOfVariables_];
double g;
double h;
double sum;
for (int i = 0; i < numberOfVariables_; i++) x[i] = decisionVariables.variables_[i].getValue();
fx[0] = x[0];
sum = 0.0;
for (int i = 1; i < numberOfVariables_; i++) sum += (x[i] * x[i] - x[0]) * (x[i] * x[i] - x[0]);
g = 1.0 + 9.0 * sum / (numberOfVariables_ - 1.0);
h = 1.0 - Math.sqrt(x[0] / g);
fx[1] = g * h;
solution.setObjective(0, fx[0]);
solution.setObjective(1, fx[1]);
} // evaluate