function deranged_sample_test ( )

%*****************************************************************************80
%
%% DERANGED_SAMPLE_TEST() tests DERANGED_MEAN(), DERANGED_VARIANCE(), DERANGED_SAMPLE().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    15 April 2009
%
%  Author:
%
%    John Burkardt
%
  nsample = 1000;

  fprintf ( 1, '\n' );
  fprintf ( 1, 'DERANGED_SAMPLE_TEST():\n' );
  fprintf ( 1, '  DERANGED_MEAN() computes the Deranged mean.\n' );
  fprintf ( 1, '  DERANGED_VARIANCE() computes the Deranged variance.\n' );
  fprintf ( 1, '  DERANGED_SAMPLE() samples the Deranged distribution.\n' );

  a = 7;

  check = deranged_check ( a );

  if ( ~check );
    fprintf ( 1, '\n' );
    fprintf ( 1, 'DERANGED_SAMPLE_TEST - Fatal error!\n' );
    fprintf ( 1, '  The parameters are not legal.\n' );
    return
  end

  x_mean = deranged_mean ( a );
  x_var = deranged_variance ( a );

  fprintf ( 1, '\n' );
  fprintf ( 1, '  PDF parameter A = %14g\n', a );
  fprintf ( 1, '  PDF mean =                    %14g\n', x_mean );
  fprintf ( 1, '  PDF variance =                %14g\n', x_var );

  x = zeros ( nsample, 1 );
  for i = 1 : nsample
    x(i) = deranged_sample ( a );
  end

  x_mean = mean ( x );
  x_var = var ( x );
  x_max = max ( x );
  x_min = min ( x );

  fprintf ( 1, '\n' );
  fprintf ( 1, '  Sample size =     %6d\n', nsample );
  fprintf ( 1, '  Sample mean =     %14f\n', x_mean );
  fprintf ( 1, '  Sample variance = %14f\n', x_var );
  fprintf ( 1, '  Sample maximum =  %6d\n', x_max );
  fprintf ( 1, '  Sample minimum =  %6d\n', x_min );

  return
end
