/* nag_ranks_and_scores (g01dhc) Example Program.
 *
 * Copyright 1996 Numerical Algorithms Group.
 *
 * Mark 4, 1996.
 * Mark 8 revised, 2004.
 *
 */

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

int main(void)
{

  Integer exit_status=0, i, n;
  NagError fail;
  double *r=0, *x=0;

  INIT_FAIL(fail);

  Vprintf("nag_ranks_and_scores (g01dhc) Example Program Results\n\n");

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

  Vscanf("%ld ", &n);
  if (n>=1)
    {
      if ( !( r = NAG_ALLOC(n, double)) ||
           !( x = NAG_ALLOC(n, double)) )
        {
          Vprintf("Allocation failure\n");
          exit_status = -1;
          goto END;
        }
    }
  else
    {
      Vprintf("Invalid n.\n");
      exit_status = 1;
      return exit_status;
    }
  for (i = 1; i <= n; ++i)
    Vscanf("%lf ", &x[i - 1]);

  /* nag_ranks_and_scores (g01dhc).
   * Ranks, Normal scores, approximate Normal scores or
   * exponential (Savage) scores
   */
  nag_ranks_and_scores(Nag_SavageScores, Nag_AverageTies, n, x, r,
                       &fail);
  if (fail.code != NE_NOERROR)
    {
      Vprintf("Error from nag_ranks_and_scores (g01dhc).\n%s\n", fail.message);
      exit_status = 1;
      goto END;
    }

  Vprintf("The Savage Scores : \n");
  Vprintf("  (Average scores are used for tied observations)\n\n");
  for (i = 1; i <= n; ++i)
    Vprintf("%10.4f\n", r[i - 1]);
 END:
  if (r) NAG_FREE(r);
  if (x) NAG_FREE(x);
  return exit_status;
}