1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
6 Centre for Digital Music, Queen Mary, University of London.
7 This file copyright 2008 Kurt Jacobson.
9 This program 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 2 of the
12 License, or (at your option) any later version. See the file
13 COPYING included with this distribution for more information.
16 #include "CosineDistance.h"
23 double CosineDistance::distance(const vector<double> &v1,
24 const vector<double> &v2)
26 dist = 1.0; dDenTot = 0; dDen1 = 0; dDen2 = 0; dSum1 =0;
29 //check if v1, v2 same size
30 if (v1.size() != v2.size())
32 cerr << "CosineDistance::distance: ERROR: vectors not the same size\n";
37 for(unsigned int i=0; i<v1.size(); i++)
43 dDenTot = sqrt(fabs(dDen1*dDen2)) + small;
44 dist = 1-((dSum1)/dDenTot);