/* nag_mv_discrim (g03dac) Example Program.
 *
 * Copyright 1998 Numerical Algorithms Group.
 *
 * Mark 5, 1998.
 *
 */

#include <nag.h>
#include <stdio.h>
#include <nag_stdlib.h>
#include <nagg03.h>

#define NMAX 21
#define MMAX 2
#define GPMAX 3

int main(void)
{
  double stat;
  double det[GPMAX], gc[(GPMAX+1)*MMAX*(MMAX+1)/2],
  gmean[GPMAX][MMAX], wt[NMAX],
  x[NMAX][MMAX];
  double df;
  double *wtptr = 0;
  double sig;

  Integer nvar;
  Integer i, j, m, n;
  Integer ing[NMAX], isx[MMAX], nig[GPMAX];
  Integer ng;
  Integer tdgmean=MMAX, tdx= MMAX;

  char weight[2];

  Vprintf("g03dac Example Program Results\n\n");

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

  Vscanf("%ld",&n);
  Vscanf("%ld",&m);
  Vscanf("%ld",&nvar);
  Vscanf("%ld",&ng);
  Vscanf("%s",weight);
  if (n <= NMAX && m <= MMAX)
    {
      if (*weight == 'W')
        {
          for (i = 0; i < n; ++i)
            {
              for (j = 0; j < m; ++j)
                Vscanf("%lf",&x[i][j]);
              Vscanf("%ld",&ing[i]);
              Vscanf("%lf",&wt[i]);
            }
          wtptr = wt;
        }
      else
        {
          for (i = 0; i < n; ++i)
            {
              for (j = 0; j < m; ++j)
                Vscanf("%lf",&x[i][j]);
              Vscanf("%ld",&ing[i]);
            }
        }
      for (j = 0; j < m; ++j)
        Vscanf("%ld",&isx[j]);

      g03dac(n, m, &x[0][0], tdx, isx, nvar, ing, ng, wtptr, nig,
             &gmean[0][0], tdgmean, det, gc, &stat, &df, &sig, NAGERR_DEFAULT);

      Vprintf("\nGroup means\n\n");
      for (i = 0; i < ng; ++i)
        {
          for (j = 0; j < nvar; ++j)
            Vprintf("%10.4f",gmean[i][j]);
          Vprintf("\n");
        }
      Vprintf("\nLOG of determinants\n\n");
      for (j = 0; j < ng; ++j)
        Vprintf("%10.4f",det[j]);
      Vprintf("\n\n%s%7.4f\n","stat = ",stat);
      Vprintf("%s%7.4f\n","  df = ",df);
      Vprintf("%s%7.4f\n"," sig = ",sig);
      return EXIT_SUCCESS;
    }
  else
    {
      Vprintf("Incorrect input value of n or m.\n");
      return EXIT_FAILURE;
    }
}