/* nag_stat_prob_students_t_noncentral (g01gbc) Example Program.
 *
 * Copyright 2021 Numerical Algorithms Group.
 *
 * Mark 27.2, 2021.
 */

#include <nag.h>
#include <stdio.h>

int main(void) {
  Integer exit_status = 0, max_iter;
  NagError fail;
  double delta, df, prob, t, tol;

  INIT_FAIL(fail);

  printf("nag_stat_prob_students_t_noncentral (g01gbc) Example Program Results"
         "\n\n");

  /* Skip heading in data file */
  scanf("%*[^\n]");

  printf("      t       df    delta    prob\n\n");
  tol = 5e-6;
  max_iter = 50;
  while ((scanf("%lf %lf %lf %*[^\n]", &t, &df, &delta)) != EOF)
  {
    /* nag_stat_prob_students_t_noncentral (g01gbc).
     * Computes probabilities for the non-central Student's
     * t-distribution
     */
    prob =
        nag_stat_prob_students_t_noncentral(t, df, delta, tol, max_iter, &fail);
    if (fail.code == NE_NOERROR)
      printf(" %8.3f%8.3f%8.3f%8.4f\n", t, df, delta, prob);
    else {
      printf("Error from nag_stat_prob_students_t_noncentral (g01gbc).\n%s\n",
             fail.message);
      exit_status = 1;
      goto END;
    }
  }
END:
  return exit_status;
}