/* nag_median_test (g08acc) Example Program.
 *
 * Copyright 2000 Numerical Algorithms Group.
 *
 * Mark 6, 2000.
 */

#include <stdio.h>
#include <nag.h>
#include <nag_stdlib.h>
#include <nagg08.h>

int main (void)
{
  double p, *x=0, *y=0;
  Integer i, above, below, n1, n2;
  Integer exit_status=0;
  NagError fail;

  INIT_FAIL(fail);
  Vprintf("g08acc Example Program Results\n");

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

  n1 = 16;
  n2 = 23;
  if (!(x = NAG_ALLOC(n1, double))
      || !(y = NAG_ALLOC(n2, double)))
    {
      Vprintf("Allocation failure\n");
      exit_status = -1;
      goto END;
    }

  for (i = 1; i <= n1; ++i)
    Vscanf("%lf", &x[i - 1]);
  for (i = 1; i <= n2; ++i)
    Vscanf("%lf", &y[i - 1]);
  Vprintf("\nMedian test\n\n");
  Vprintf("Data values\n\n");
  Vprintf("    Group 1  ");
  for (i = 1; i <= n1; ++i)
    Vprintf("%4.0f%s", x[i - 1], i%8?"":"\n             ");
  Vprintf("\n");
  Vprintf("    Group 2  ");
  for (i = 1; i <= n2; ++i)
    Vprintf("%4.0f%s", y[i - 1], i%8?"":"\n             ");
  Vprintf("\n");
  g08acc(n1, x, n2, y, &above, &below, &p, &fail);
  if (fail.code != NE_NOERROR)
    {
      Vprintf("Error from g08acc.\n%s\n", fail.message);
      exit_status = 1;
      goto END;
    }

  Vprintf("\n");
  Vprintf("%6ld%s\n", above, " scores below median in group 1");
  Vprintf("%6ld%s\n", below, " scores below median in group 2");
  Vprintf("\n%s%8.5f\n", "     Significance  ", p);
 END:
  if (x) NAG_FREE(x);
  if (y) NAG_FREE(y);
  return exit_status;
}