qm-dsp  1.8
CosineDistance.h
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00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
00002 
00003 /*
00004     QM DSP Library
00005 
00006     Centre for Digital Music, Queen Mary, University of London.
00007     This file copyright 2008 Kurt Jacobson.
00008 
00009     This program is free software; you can redistribute it and/or
00010     modify it under the terms of the GNU General Public License as
00011     published by the Free Software Foundation; either version 2 of the
00012     License, or (at your option) any later version.  See the file
00013     COPYING included with this distribution for more information.
00014 */
00015 
00016 #ifndef COSINEDISTANCE_H
00017 #define COSINEDISTANCE_H
00018 
00019 #include <vector>
00020 #include <math.h>
00021 
00022 using std::vector;
00023 
00024 class CosineDistance
00025 {
00026 public:
00027     CosineDistance() { }
00028     ~CosineDistance() { }
00029 
00030     double distance(const vector<double> &v1, const vector<double> &v2);
00031 
00032 protected:
00033     double dist, dDenTot, dDen1, dDen2, dSum1;
00034 };
00035 
00036 #endif
00037