docs: public void fitness(List<S> solutionSet, int pos) {
      double fitness = 0.0;
      double kappa = 0.05;
  
      for (int i = 0; i < solutionSet.size(); i++) {
        if (i != pos) {
          fitness += Math.exp((-1 * indicatorValues.get(i).get(pos) / maxIndicatorValue) / kappa);
        }
      }
      solutionFitness.setAttribute(solutionSet.get(pos), fitness);
    }