/* nag_normal_scores_exact (g01dac) Example Program.
 *
 * Copyright 2001 Numerical Algorithms Group.
 *
 * Mark 7, 2001.
 */

#include <stdio.h>
#include <nag.h>
#include <nagx04.h>
#include <nag_stdlib.h>
#include <nagg01.h>

int main(int argc, char *argv[])
{
  FILE     *fpout;
  /* Scalars */
  double   errest, etol;
  Integer  exit_status = 0, i, j, n, nmax;
  NagError fail;
  /* Arrays */
  double   *pp = 0;

  INIT_FAIL(fail);

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

  fprintf(fpout, "nag_normal_scores_exact (g01dac) Example Program Results\n");

  etol = 0.001;
  nmax = 15;

  /* Allocate memory */
  if (!(pp = NAG_ALLOC(nmax, double)))
    {
      fprintf(fpout, "Allocation failure\n");
      exit_status = -1;
      goto END;
    }

  for (j = 5; j <= nmax; j += 5)
    {
      n = j;
      /* nag_normal_scores_exact (g01dac).
       * Normal scores, accurate values
       */
      nag_normal_scores_exact(n, pp, etol, &errest, &fail);

      if (fail.code != NE_NOERROR)
        {
          fprintf(fpout, "Error from nag_normal_scores_exact (g01dac).\n%s\n",
                  fail.message);
          exit_status = 1;
          goto END;
        }
      fprintf(fpout, "\nSet size = %2ld\n\n", n);
      fprintf(fpout, "Error tolerance (input) = %13.3e\n\n", etol);
      fprintf(fpout, "Error estimate (output) = %13.3e\n\n", errest);
      fprintf(fpout, "Normal scores\n");
      for (i = 1; i <= n; ++i)
        {
          fprintf(fpout, "%10.3f", pp[i - 1]);
          fprintf(fpout, i%5 == 0 || i == n?"\n":" ");
        }
      fprintf(fpout, "\n");
    }

 END:
  if (fpout != stdout) fclose(fpout);
  if (pp) NAG_FREE(pp);

  return exit_status;
}