/* nag_prob_2_sample_ks (g01ezc) 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     *fpin, *fpout;

  /* Scalars */
  double   d__, prob;
  Integer  exit_status, n1, n2;
  NagError fail;


  INIT_FAIL(fail);

  /* Check for command-line IO options */
  fpin = nag_example_file_io(argc, argv, "-data", NULL);
  fpout = nag_example_file_io(argc, argv, "-results", NULL);
  exit_status = 0;
  fprintf(fpout, "nag_prob_2_sample_ks (g01ezc) Example Program Results\n\n");
  fprintf(fpout, "    d      n1    n2    Two-sided probability\n\n");

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

  while (fscanf(fpin, "%ld%ld%lf%*[^\n] ", &n1, &n2, &d__) != EOF)
    {
      /* nag_prob_2_sample_ks (g01ezc).
       * Computes probabilities for the two-sample
       * Kolmogorov-Smirnov distribution
       */
      prob = nag_prob_2_sample_ks(n1, n2, d__, &fail);
      if (fail.code != NE_NOERROR)
        {
          fprintf(fpout, "Error from nag_prob_2_sample_ks (g01ezc).\n%s\n",
                  fail.message);
          exit_status = 1;
          goto END;
        }
      fprintf(fpout, "%7.4f%2s%4ld%2s%4ld%10s%7.4f\n", d__,
              "", n1, "", n2, "", prob);
    }
 END:
  if (fpin != stdin) fclose(fpin);
  if (fpout != stdout) fclose(fpout);
  return exit_status;
}