/* nag_mv_distance_mat_2 (g03ebc) Example Program.
 *
 * Copyright 2024 Numerical Algorithms Group.
 *
 * Mark 30.1, 2024.
 *
 */

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

int main(void) {
  Integer           exit_status = 0;
  Integer           i, j, k, m, n, l, pdx, pdy;
  Integer           *isv = 0;
  double            p;
  double            *d = 0, *sx = 0, *sy = 0, *x = 0, *y = 0;
  char              nag_enum_1[40], nag_enum_2[40], nag_enum_3[40];
  Nag_MatUpdate     update;
  Nag_VarScaleType  scale;
  Nag_VarScaleYType stype;
  NagError          fail;

  INIT_FAIL(fail);

  printf("nag_mv_distance_mat_2 (g03ebc) Example Program Results\n\n");

  /* Skip heading and read in problem parameters */
  scanf("%*[^\n]");
  scanf("%lf", &p);
  scanf("%" NAG_IFMT "", &m);
  scanf("%" NAG_IFMT "", &n);
  scanf("%" NAG_IFMT "", &l);
  if (n >= 1 && m >= 1 && l >= 1) {
    pdx = m;
    pdy = n;
    if (!(d   = NAG_ALLOC(m*n,   double)) ||
        !(sx  = NAG_ALLOC(l,     double)) ||
        !(sy  = NAG_ALLOC(l,     double)) ||
	!(x   = NAG_ALLOC(pdx*l, double)) ||
	!(y   = NAG_ALLOC(pdy*l, double)) ||
        !(isv = NAG_ALLOC(l,     Integer))) {
      printf("Allocation failure\n");
      exit_status = -1;
      goto END;
    }
  } else {
    printf("Invalid m, n or l.\n");
    exit_status = 1;
    return exit_status;
  }
  scanf("%39s", nag_enum_1);
  scanf("%39s", nag_enum_2);
  scanf("%39s", nag_enum_3);
  /* nag_enum_name_to_value (x04nac).
   * Converts NAG enum member name to value
   */
  update = (Nag_MatUpdate)nag_enum_name_to_value(nag_enum_1);
  scale = (Nag_VarScaleType)nag_enum_name_to_value(nag_enum_2);
  stype = (Nag_VarScaleYType)nag_enum_name_to_value(nag_enum_3);

  for (i = 0; i < m; ++i) {
    for (k = 0; k < l; ++k) {
      scanf("%lf", &x[i+pdx*k]);
    }
  }
  for (j = 0; j < n; ++j) {
    for (k = 0; k < l; ++k) {
      scanf("%lf", &y[j+pdy*k]);
    }
  }
  for (i = 0; i < l; ++i) {
    scanf("%" NAG_IFMT "", &isv[i]);
  }
  for (i = 0; i < l; ++i) {
    scanf("%lf", &sx[i]);
  }
  for (i = 0; i < l; ++i) {
      scanf("%lf", &sy[i]);
  }
  /* nag_mv_distance_mat_2 (g03ebc).
   * Compute distance (dissimilarity) matrix
   */
  nag_mv_distance_mat_2(update, scale, stype, p, m, n, l, x, pdx, isv, y,
			pdy, sx, sy, d, &fail);
  if (fail.code != NE_NOERROR) {
    printf("Error from nag_mv_distance_mat (g03eac).\n%s\n", fail.message);
    exit_status = 1;
    goto END;
  }

  /* Print the distance matrix */

  printf(" Distance Matrix \n\n");
  printf("    %s\n", "   1       2       3       4\n");
  for (i = 0; i < m; ++i) {
    printf("%2" NAG_IFMT "     ", i+1);
    for (j = 0; j < n; ++j) {
      printf("%5.2f   ", d[i+j*m]);
    }
    printf("\n");
  }

END:
  NAG_FREE(d);
  NAG_FREE(sx);
  NAG_FREE(sy);
  NAG_FREE(x);
  NAG_FREE(y);
  NAG_FREE(isv);

  return exit_status;
}