/* nag_tabulate_margin (g11bcc) Example Program.
 *
 * Copyright 2002 Numerical Algorithms Group.
 *
 * Mark 7, 2002.
 */

#include <stdio.h>
#include <nag.h>
#include <nag_stdlib.h>
#include <nagg11.h>

int main(void)
{
  /* Scalars */
  Integer exit_status, i, j, k, maxst, mcells, mdim,
    ncells, ncol, ndim, nrow;
  NagError fail;
  Nag_TableStats stat_enum;
  char stat;

  /* Arrays */
  double *auxt = 0, *stable = 0, *table = 0;
  Integer *idim = 0, *isdim = 0, *mlevel = 0;

  INIT_FAIL(fail);
  exit_status = 0;
  Vprintf("nag_tabulate_margin (g11bcc) Example Program Results\n");

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

  Vscanf(" '%c'%ld%ld%*[^\n] ", &stat, &ncells, &ndim);
  maxst = 54;

  /* Allocate arrays */
  if ( !(auxt = NAG_ALLOC(maxst, double)) ||
       !(stable = NAG_ALLOC(maxst, double)) ||
       !(table = NAG_ALLOC(ncells, double)) ||
       !(idim = NAG_ALLOC(ndim, Integer)) ||
       !(isdim = NAG_ALLOC(ndim, Integer)) ||
       !(mlevel = NAG_ALLOC(ndim, Integer)) )
    {
      Vprintf("Allocation failure\n");
      exit_status = -1;
      goto END;
    }

  for (i = 1; i <= ncells; ++i)
    Vscanf("%lf", &table[i-1]);
  Vscanf("%*[^\n] ");

  for (j = 1; j <= ndim; ++j)
    Vscanf("%ld", &idim[j-1]);
  Vscanf("%*[^\n] ");

  for (j = 1; j <= ndim; ++j)
    Vscanf("%ld", &isdim[j-1]);
  Vscanf("%*[^\n] ");

  switch (stat)
    {
    case 'T':
      stat_enum = Nag_TableStatsNObs;
      break;
    case 'A':
      stat_enum = Nag_TableStatsAv;
      break;
    case 'M':
      stat_enum = Nag_TableStatsMedian;
      break;
    case 'V':
      stat_enum = Nag_TableStatsVar;
      break;
    case 'L':
      stat_enum = Nag_TableStatsLarge;
      break;
    case 'S':
      stat_enum = Nag_TableStatsSmall;
      break;
    default:
      stat_enum = Nag_TableStatsNObs;
    }

  /* nag_tabulate_margin (g11bcc).
   * Computes marginal tables for multiway table computed by
   * nag_tabulate_stats (g11bac) or nag_tabulate_percentile
   * (g11bbc)
   */
  nag_tabulate_margin(stat_enum, table, ncells, ndim, idim, isdim, stable,
                      maxst, &mcells, &mdim, mlevel, auxt, &fail);
  if (fail.code != NE_NOERROR)
    {
      Vprintf("Error from nag_tabulate_margin (g11bcc).\n%s\n", fail.message);
      exit_status = 1;
      goto END;
    }


  Vprintf("\n");
  Vprintf(" Marginal Table\n");
  Vprintf("\n");

  ncol = mlevel[mdim-1];
  nrow = mcells / ncol;
  k = 1;
  for (i = 1; i <= nrow; ++i)
    {
      for (j = k; j <= k + ncol - 1; ++j)
        Vprintf("%7.2f ", stable[j-1]);
      Vprintf("\n");
      k += ncol;
    }

 END:
  if (auxt) NAG_FREE(auxt);
  if (stable) NAG_FREE(stable);
  if (table) NAG_FREE(table);
  if (idim) NAG_FREE(idim);
  if (isdim) NAG_FREE(isdim);
  if (mlevel) NAG_FREE(mlevel);

  return exit_status;
}