source: trunk/test/ttest_test.cc @ 1619

Last change on this file since 1619 was 1487, checked in by Jari Häkkinen, 13 years ago

Addresses #436. GPL license copy reference should also be updated.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 1.7 KB
Line 
1// $Id: ttest_test.cc 1487 2008-09-10 08:41:36Z jari $
2
3/*
4  Copyright (C) 2007 Jari Häkkinen, Peter Johansson
5  Copyright (C) 2008 Peter Johansson
6
7  This file is part of the yat library, http://dev.thep.lu.se/yat
8
9  The yat library is free software; you can redistribute it and/or
10  modify it under the terms of the GNU General Public License as
11  published by the Free Software Foundation; either version 3 of the
12  License, or (at your option) any later version.
13
14  The yat library is distributed in the hope that it will be useful,
15  but WITHOUT ANY WARRANTY; without even the implied warranty of
16  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  General Public License for more details.
18
19  You should have received a copy of the GNU General Public License
20  along with yat. If not, see <http://www.gnu.org/licenses/>.
21*/
22
23#include "Suite.h"
24
25#include "yat/classifier/Target.h"
26#include "yat/statistics/tTest.h"
27#include "yat/statistics/utility.h"
28#include "yat/utility/Vector.h"
29
30#include <cmath>
31#include <fstream>
32#include <iostream>
33
34
35using namespace theplu::yat;
36
37int main(int argc, char* argv[])
38{ 
39  test::Suite suite(argc, argv);
40
41  suite.err() << "testing ttest" << std::endl;
42  utility::Vector value(31);
43  std::vector<std::string> label(31,"positive");
44  for (size_t i=0; i<16; i++) 
45    label[i] = "negative";
46  classifier::Target target(label);
47  target.set_binary(0,false);
48  target.set_binary(1,true);
49  for (size_t i=0; i<value.size(); i++) 
50    value(i)=i;
51  statistics::tTest test;
52  statistics::add(test, value.begin(), value.end(), target);
53  double p = test.p_value_one_sided();
54  double p2 = test.p_value();
55  if (!suite.equal(p2, 2*p) ){
56    suite.add(false);
57    suite.err() << "Two-sided P-value should equal 2 * one-sided P-value.\n";
58  }
59
60  return suite.return_value();
61}
Note: See TracBrowser for help on using the repository browser.