/* nag_mv_z_scores (g03zac) Example Program.
 *
 * Copyright 1998 Numerical Algorithms Group.
 *
 * Mark 5, 1998.
 * Mark 8 revised, 2004.
 *
 */

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

#define X(I,J) x[(I)*tdx + J]
#define Z(I,J) z[(I)*tdz + J]
int main(void)
{
  Integer exit_status=0, i, *isx=0, j, m, n, nvar, tdx, tdz;
  NagError fail;
  double *e=0, *s=0, *x=0, *z=0;

  INIT_FAIL(fail);

  Vprintf("nag_mv_z_scores (g03zac) Example Program Results\n\n");

  /* Skip headings in data file */
  Vscanf("%*[^\n]");
  Vscanf("%ld",&n);
  Vscanf("%ld",&m);
  Vscanf("%ld",&nvar);

  if (n>=1 && nvar>=1 && m>=nvar)
    {
      if ( !( e = NAG_ALLOC(m, double)) ||
           !( s = NAG_ALLOC(m, double)) ||
           !( x = NAG_ALLOC((n)*(m), double)) ||
           !( z = NAG_ALLOC((n)*(nvar), double))  ||
           !( isx = NAG_ALLOC(m, Integer)) )
        {
          Vprintf("Allocation failure\n");
          exit_status = -1;
          goto END;
        }
      tdx=m;
      tdz=nvar;
    }
  else
    {
      Vprintf("Invalid n or nvar.\n");
      exit_status = 1;
      return exit_status;
    }
  for (i = 0; i < n; ++i)
    {
      for (j = 0; j < m; ++j)
        Vscanf("%lf",&X(i,j));
    }
  for (j = 0; j < m; ++j)
    Vscanf("%ld",&isx[j]);

  for (j = 0; j < m; ++j)
    Vscanf("%lf",&e[j]);

  for (j = 0; j < m; ++j)
    Vscanf("%lf",&s[j]);

  /* nag_mv_z_scores (g03zac).
   * Standardize values of a data matrix
   */
  nag_mv_z_scores(n, m, x, tdx, nvar, isx, s, e, z, tdz, &fail);
  if (fail.code != NE_NOERROR)
    {
      Vprintf("Error from nag_mv_z_scores (g03zac).\n%s\n", fail.message);
      exit_status = 1;
      goto END;
    }

  Vprintf("\nStandardized Values\n\n");
  for (i = 0; i < n; ++i)
    {
      for (j = 0; j < nvar; ++j)
        Vprintf("%8.3f",Z(i,j));
      Vprintf("\n");
    }
 END:
  if (e) NAG_FREE(e);
  if (s) NAG_FREE(s);
  if (x) NAG_FREE(x);
  if (z) NAG_FREE(z);
  if (isx) NAG_FREE(isx);
  return exit_status;

}