/* nag_ref_vec_discrete_pdf_cdf (g05exc) Example Program.
 *
 * Copyright 1991 Numerical Algorithms Group.
 *
 * Mark 2, 1991.
 *
 * Mark 3 revised, 1994.
 */

#include <nag.h>
#include <nagx04.h>
#include <stdio.h>
#include <nag_stdlib.h>
#include <nagg05.h>

#define NP 10

int main(int argc, char *argv[])
{
  FILE          *fpout;
  Integer       exit_status = 0;
  static double p[NP] = { 0.0, 0.1, 0.2, 0.4, 0.5, 0.6, 0.8, 0.9, 1.0, 1.0 };
  Integer       i, x;
  double        *r;
  NagError      fail;

  INIT_FAIL(fail);

  /* Check for command-line IO options */
  fpout = nag_example_file_io(argc, argv, "-results", NULL);

  fprintf(fpout,
          "nag_ref_vec_discrete_pdf_cdf (g05exc) Example Program Results\n");
  /* nag_random_init_repeatable (g05cbc).
   * Initialize random number generating functions to give
   * repeatable sequence
   */
  nag_random_init_repeatable((Integer) 0);
  /* nag_ref_vec_discrete_pdf_cdf (g05exc).
   * Set up reference vector from supplied cumulative
   * distribution function or probability distribution
   * function
   */
  nag_ref_vec_discrete_pdf_cdf(p, (Integer) NP, (Integer) 0, Nag_CDF, &r,
                               &fail);
  if (fail.code != NE_NOERROR)
    {
      fprintf(fpout, "Error from nag_ref_vec_discrete_pdf_cdf (g05exc) %s\n",
              fail.message);
      exit_status = 1;
      goto END;
    }
  for (i = 1; i <= 5; i++)
    {
      /* nag_return_discrete (g05eyc).
       * Pseudo-random integer from reference vector
       */
      x = nag_return_discrete(r);
      fprintf(fpout, "%5ld\n", x);
    }

 END:
  if (fpout != stdout) fclose(fpout);
  NAG_FREE(r);
  return exit_status;
}