/* nag_tsa_multi_part_regsn (g13dpc) Example Program.
 *
 * Copyright 2002 Numerical Algorithms Group.
 *
 * Mark 7, 2002.
 */

#include <stdio.h>
#include <nag.h>
#include <nag_stdlib.h>
#include <nagg13.h>

static void zprint(Integer, Integer, double *,
                   double *, double *,double *, double *);

int main(void)
{
  /* Scalars */
  Integer exit_status, i, j, k, m, maxlag, n, tl, pdz;
  NagError fail;

  /* Arrays */
  double *loglhd = 0, *parlag = 0, *pvalue = 0, *qq = 0, *se = 0, *z = 0, *x = 0;

#define Z(I,J) z[(J-1)*pdz + I - 1]

  INIT_FAIL(fail);
  exit_status = 0;

  Vprintf("g13dpc Example Program Results\n");

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

  Vscanf("%ld%ld%ld%*[^\n] ", &k, &n, &m);

  if (k > 0 && n >= 1 && m >= 1)
    {
      /* Allocate arrays */
      tl = m*k+1;
      if ( !(loglhd = NAG_ALLOC(m, double)) ||
           !(parlag = NAG_ALLOC(k * k * m, double)) ||
           !(pvalue = NAG_ALLOC(m, double)) ||
           !(qq = NAG_ALLOC(k * k * m, double)) ||
           !(se = NAG_ALLOC(k * k * m, double)) ||
           !(z = NAG_ALLOC(k * n, double)) ||
           !(x = NAG_ALLOC(m, double)) )
        {
          Vprintf("Allocation failure\n");
          exit_status = -1;
          goto END;
        }

        pdz = k;

      for (i = 1; i <= k; ++i)
        {
          for (j = 1; j <= n; ++j)
            Vscanf("%lf", &Z(i,j));
          Vscanf("%*[^\n] ");
        }

      g13dpc(k, n, z, m, &maxlag, parlag, se, qq, x, pvalue,
              loglhd, &fail);
      if (fail.code != NE_NOERROR)
        {
          Vprintf("Error from g13dpc.\n%s\n",   fail.message);
          exit_status = 1;
          goto END;
        }
      zprint(k, maxlag, parlag, se, qq, x, pvalue);
    }

 END:
  if (loglhd) NAG_FREE(loglhd);
  if (parlag) NAG_FREE(parlag);
  if (pvalue) NAG_FREE(pvalue);
  if (qq) NAG_FREE(qq);
  if (se) NAG_FREE(se);
  if (z) NAG_FREE(z);
  if (x) NAG_FREE(x);

  return exit_status;
}

static void zprint(Integer k, Integer maxlag, double *parlag,
                   double *se, double *qq, double *x, double *pvalue)
{
  /* Scalars */
  double sum;
  Integer i2, i, j, lf;

  /* Arrays */
  char st[7];

#define SE(I,J,K) se[((K-1)*k + (J-1))*k + I - 1]
#define QQ(I,J,K) qq[((K-1)*k + (J-1))*k + I - 1]
#define PARLAG(I,J,K) parlag[((K-1)*k + (J-1))*k + I - 1]

  if (k > 1)
    {
      Vprintf("\n");
      Vprintf(" Partial Autoregression Matrices    Indicator"
              "  Residual   Chi-Square  Pvalue\n");
      Vprintf("                                     Symbols"
              "   Variances   Statistic\n");
      Vprintf(" -------------------------------    ---------"
              "  ---------  ----------- ------\n");
    }

  if (k == 1)
    {
      Vprintf("\n");
      Vprintf(" Partial Autoregression Function    Indicator"
              "  Residual   Chi-Square  Pvalue\n");
      Vprintf("                                     Symbols");
      Vprintf("   Variances");
      Vprintf("   Statistic\n");
      Vprintf(" -------------------------------    ---------"
              "  ---------  ----------- ------\n");
    }

  for (lf = 1; lf <= maxlag; ++lf)
    {
      for (j = 1; j <= k; ++j)
        {
          sum = PARLAG(1,j,lf);
          st[j] = '.';
          if (sum > SE(1,j,lf) * 1.96)
            st[j] = '+';
          if (sum < SE(1,j,lf) * -1.96)
            st[j] = '-';
        }

      if (k == 1)
        {
          Vprintf("\n");
          Vprintf(" Lag %2ld :", lf);
          for (j = 1; j <= k; ++j)
            {
              Vprintf("%6.3f", PARLAG(1,j,lf));
              Vprintf("%14s", "");
            }
          for (i2 = 1; i2 <= k; ++i2)
            Vprintf("%c", st[i2]);
          Vprintf("%14.3f%13.3f%9.3f\n", QQ(1,1,lf), x[lf-1], pvalue[lf-1]);
          Vprintf("          ");
          for (j = 1; j <= k; ++j)
            Vprintf("(%6.3f ) ", SE(1,j,lf));
          Vprintf("\n");
        }
      else if (k == 2)
        {
          Vprintf("\n");
          Vprintf(" Lag %2ld :", lf);
          for (j = 1; j <= k; ++j)
            Vprintf("%8.3f", PARLAG(1,j,lf));
          Vprintf("%14s", "");
          for (i2 = 1; i2 <= k; ++i2)
            Vprintf("%c", st[i2]);
          Vprintf("%13.3f %12.3f %8.3f\n", QQ(1,1,lf), x[lf-1], pvalue[lf-1]);
          Vprintf("           ");
          for (j = 1; j <= k; ++j)
            Vprintf("(%5.3f) ", SE(1,j,lf));
          Vprintf("\n");
        }
      else if (k == 3)
        {
          Vprintf("\n");
          Vprintf(" Lag %2ld :", lf);
          for (j = 1; j <= k; ++j)
            Vprintf("%8.3f      ", PARLAG(1,j,lf));
          for (i2 = 1; i2 <= k; ++i2)
            Vprintf("%c", st[i2]);
          Vprintf("%12.3f%13.3f%9.3f\n", QQ(1,1,lf), x[lf-1], pvalue[lf-1]);
          Vprintf("           ");
          for (j = 1; j <= k; ++j)
            Vprintf("(%5.3f) ", SE(1,j,lf));
          Vprintf("\n");
        }
      else if (k == 4)
        {
          Vprintf("\n");
          Vprintf(" Lag %2ld\n", lf);
          for (j = 1; j <= k; ++j)
            Vprintf("%8.3f     ", PARLAG(1,j,lf));
          for (i2 = 1; i2 <= k; ++i2)
            Vprintf("%c", st[i2]);
          Vprintf("%12.3f%13.3f%9.3f\n", QQ(1,1,lf), x[lf-1], pvalue[lf-1]);
          Vprintf("   ");
          for (j = 1; j <= k; ++j)
            Vprintf("(%5.3f) ", SE(1,j,lf));
          Vprintf("\n");
        }

      for (i = 2; i <= k; ++i)
        {
          for (j = 1; j <= k; ++j)
            {
              sum = PARLAG(i,j,lf);
              st[j] = '.';
              if (sum > SE(i,j,lf) * 1.96)
                st[j] = '+';
              if (sum < SE(i,j,lf) * -1.96)
                st[j] = '-';
            }
          if (k == 2)
            {
              Vprintf("         ");
              for (j = 1; j <= k; ++j)
                Vprintf("%8.3f", PARLAG(i,j,lf));
              Vprintf("              ");
              for (i2 = 1; i2 <= k; ++i2)
                Vprintf("%c", st[i2]);
              Vprintf("%13.3f\n", QQ(i,i,lf));
              Vprintf("           ");
              for (j = 1; j <= k; ++j)
                Vprintf("(%5.3f) ", SE(i,j,lf));
              Vprintf("\n");
            }
          else if (k == 3)
            {
              Vprintf("         ");
              for (j = 1; j <= k; ++j)
                Vprintf("%8.3f      ", PARLAG(i,j,lf));
              for (i2 = 1; i2 <= k; ++i2)
                Vprintf("%c", st[i2]);
              Vprintf("%12.3f\n", QQ(i,i,lf));
              Vprintf("           ");
              for (j = 1; j <= k; ++j)
                Vprintf("(%5.3f) ", SE(i,j,lf));
              Vprintf("\n");
            }
          else if (k == 4)
            {
              for (j = 1; j <= k; ++j)
                Vprintf("%8.3f     ", PARLAG(i,j,lf));
              for (i2 = 1; i2 <= k; ++i2)
                Vprintf("%c", st[i2]);
              Vprintf("%12.3f\n", QQ(i,i,lf));
              Vprintf("   ");
              for (j = 1; j <= k; ++j)
                Vprintf("(%5.3f) ", SE(i,j,lf));
              Vprintf("\n");
            }
        }
    }

  return;
}