# include <math.h>
# include <stdlib.h>
# include <stdio.h>
# include <time.h>

# include "asa066.h"

int main ( );
void test01 ( );
void test02 ( );
void test03 ( );
void timestamp ( );

/******************************************************************************/

int main ( )

/******************************************************************************/
/*
  Purpose:

    asa066_test() tests asa066().

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    01 November 2010

  Author:

    John Burkardt
*/
{
  timestamp ( );
  printf ( "\n" );
  printf ( "asa066_test():\n" );
  printf ( "  C version\n" );
  printf ( "  Test asa066().\n" );

  test01 ( );
  test02 ( );
  test03 ( );
/*
  Terminate.
*/
  printf ( "\n" );
  printf ( "asa066_test():\n" );
  printf ( "  Normal end of execution.\n" );
  printf ( "\n" );
  timestamp ( );

  return 0;
}
/******************************************************************************/

void test01 ( )

/******************************************************************************/
/*
  Purpose:

    test01() tests alnorm().

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    01 November 2010

  Author:

    John Burkardt
*/
{
  double fx;
  double fx2;
  int n_data;
  int upper = 0;
  double x;

  printf ( "\n" );
  printf ( "test01():\n" );
  printf ( "  Compare tabulated values of the normal\n" );
  printf ( "  Cumulative Density Function against values\n" );
  printf ( "  computed by alnorm().\n" );
  printf ( "\n" );
  printf ( "         X        CDF                       CDF" );
  printf ( "                    DIFF\n" );
  printf ( "               (tabulated)                 (ALNORM)\n" );
  printf ( "\n" );

  n_data = 0;

  for ( ; ; )
  {
    normal_01_cdf_values ( &n_data, &x, &fx );

    if ( n_data == 0 )
    {
      break;
    }

    fx2 = alnorm ( x, upper );

    printf ( "  %10.4f  %24.16f  %24.16f  %20.4e\n",
      x, fx, fx2, fabs ( fx - fx2 ) );
  }

  return;
}
/******************************************************************************/

void test02 ( )

/******************************************************************************/
/*
  Purpose:

    test02() tests normp().

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    01 November 2010

  Author:

    John Burkardt
*/
{
  double fx;
  double fx2;
  int n_data;
  double p;
  double pdf;
  double q;
  double x;

  printf ( "\n" );
  printf ( "test02():\n" );
  printf ( "  Compare tabulated values of the normal\n" );
  printf ( "  Cumulative Density Function against values\n" );
  printf ( "  computed by normp().\n" );
  printf ( "\n" );
  printf ( "         X        CDF                       CDF" );
  printf ( "                    DIFF\n" );
  printf ( "               (tabulated)                 (NORMP)\n" );
  printf ( "\n" );

  n_data = 0;

  for ( ; ; )
  {
    normal_01_cdf_values ( &n_data, &x, &fx );

    if ( n_data == 0 )
    {
      break;
    }

    normp ( x, &p, &q, &pdf );
    fx2 = p;

    printf ( "  %10.4f  %24.16f  %24.16f  %20.4e\n",
      x, fx, fx2, fabs ( fx - fx2 ) );
  }

  return;
}
/******************************************************************************/

void test03 ( )

/******************************************************************************/
/*
  Purpose:

    test03() tests nprob().

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    01 November 2010

  Author:

    John Burkardt
*/
{
  double fx;
  double fx2;
  int n_data;
  double p;
  double pdf;
  double q;
  double x;

  printf ( "\n" );
  printf ( "test03():\n" );
  printf ( "  Compare tabulated values of the normal\n" );
  printf ( "  Cumulative Density Function against values\n" );
  printf ( "  computed by nprob().\n" );
  printf ( "\n" );
  printf ( "         X        CDF                       CDF" );
  printf ( "                    DIFF\n" );
  printf ( "               (tabulated)                 (NPROB)\n" );
  printf ( "\n" );

  n_data = 0;

  for ( ; ; )
  {
    normal_01_cdf_values ( &n_data, &x, &fx );

    if ( n_data == 0 )
    {
      break;
    }

    nprob ( x, &p, &q, &pdf );
    fx2 = p;

    printf ( "  %10.4f  %24.16f  %24.16f  %20.4e\n",
      x, fx, fx2, fabs ( fx - fx2 ) );
  }

  return;
}
/******************************************************************************/

void timestamp ( )

/******************************************************************************/
/*
  Purpose:

    timestamp() prints the current YMDHMS date as a time stamp.

  Example:

    17 June 2014 09:45:54 AM

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    17 June 2014

  Author:

    John Burkardt
*/
{
# define TIME_SIZE 40

  static char time_buffer[TIME_SIZE];
  const struct tm *tm;
  time_t now;

  now = time ( NULL );
  tm = localtime ( &now );

  strftime ( time_buffer, TIME_SIZE, "%d %B %Y %I:%M:%S %p", tm );

  printf ( "%s\n", time_buffer );

  return;
# undef TIME_SIZE
}