source: trunk/test/vector_distance_test.cc @ 889

// $Id$

#include "yat/statistics/euclidean_vector_distance.h"
#include "yat/statistics/pearson_vector_distance.h"
#include "yat/utility/vector.h"

#include <cassert>
#include <fstream>
#include <iostream>


using namespace theplu::yat;

int main(const int argc,const char* argv[])

{  
  std::ostream* error;
  if (argc>1 && argv[1]==std::string("-v"))
    error = &std::cerr;
  else {
    error = new std::ofstream("/dev/null");
    if (argc>1)
      std::cout << "vector_distance_test -v : for printing extra information\n";
  }
  *error << "testing distance" << std::endl;
  bool ok = true;

  utility::vector a(3,1);
  a(1) = 2;
  utility::vector b(3,0);
  b(2) = 1;

  *error << "testing Euclidean vector_distance" << std::endl;
  double dist=statistics::vector_distance(a.begin(),a.end(),b.begin(),
                                          statistics::euclidean_vector_distance_tag());

  *error << "Dist: " << dist << std::endl;


  *error << "testing Pearson vector_distance" << std::endl;
  dist=statistics::vector_distance(a.begin(),a.end(),b.begin(),
                                          statistics::pearson_vector_distance_tag()); 
  *error << "Dist: " << dist << std::endl;


  if (error!=&std::cerr)
    delete error;

  if (ok=true)  
    return 0;
  return -1;
}