C++ (Cpp) f_griewank_rosenbrock_evaluate 예제들

예제 #1

파일: f_griewank_rosenbrock.c 프로젝트: Ulfgard/coco

/**
 * @brief Allocates the basic Griewank-Rosenbrock problem.
 */
static coco_problem_t *f_griewank_rosenbrock_allocate(const size_t number_of_variables) {

  coco_problem_t *problem = coco_problem_allocate_from_scalars("Griewank Rosenbrock function",
      f_griewank_rosenbrock_evaluate, NULL, number_of_variables, -5.0, 5.0, 1);
  coco_problem_set_id(problem, "%s_d%02lu", "griewank_rosenbrock", number_of_variables);

  /* Compute best solution */
  f_griewank_rosenbrock_evaluate(problem, problem->best_parameter, problem->best_value);
  return problem;
}

예제 #2

파일: f_griewank_rosenbrock.c 프로젝트: belkhir-nacim/numbbo

static coco_problem_t *f_griewank_rosenbrock(const size_t number_of_variables) {
  size_t i, problem_id_length;
  coco_problem_t *problem = coco_problem_allocate(number_of_variables, 1, 0);
  problem->problem_name = coco_strdup("griewank rosenbrock function");
  /* Construct a meaningful problem id */
  problem_id_length = (size_t) snprintf(NULL, 0, "%s_%02lu", "griewank rosenbrock",
      (long) number_of_variables);
  problem->problem_id = coco_allocate_memory(problem_id_length + 1);
  snprintf(problem->problem_id, problem_id_length + 1, "%s_%02lu", "griewank rosenbrock",
      (long) number_of_variables);

  problem->number_of_variables = number_of_variables;
  problem->number_of_objectives = 1;
  problem->number_of_constraints = 0;
  problem->evaluate_function = f_griewank_rosenbrock_evaluate;
  for (i = 0; i < number_of_variables; ++i) {
    problem->smallest_values_of_interest[i] = -5.0;
    problem->largest_values_of_interest[i] = 5.0;
    problem->best_parameter[i] = 1.0; /* z^opt = 1*/
  }
  /* Calculate best parameter value */
  f_griewank_rosenbrock_evaluate(problem, problem->best_parameter, problem->best_value);
  return problem;
}