00001 /* 00002 * This program is free software; you can redistribute it and/or modify 00003 * it under the terms of the GNU General Public License as published by 00004 * the Free Software Foundation; either version 3 of the License, or 00005 * (at your option) any later version. 00006 * 00007 * Written (W) 2008-2009 Christian Gehl 00008 * Copyright (C) 2008-2009 Fraunhofer Institute FIRST 00009 */ 00010 00011 #ifndef _BRAYCURTISDISTANCE_H___ 00012 #define _BRAYCURTISDISTANCE_H___ 00013 00014 #include <shogun/lib/common.h> 00015 #include <shogun/distance/SimpleDistance.h> 00016 #include <shogun/features/SimpleFeatures.h> 00017 00018 namespace shogun 00019 { 00031 class CBrayCurtisDistance: public CSimpleDistance<float64_t> 00032 { 00033 public: 00035 CBrayCurtisDistance(); 00036 00042 CBrayCurtisDistance(CSimpleFeatures<float64_t>* l, CSimpleFeatures<float64_t>* r); 00043 virtual ~CBrayCurtisDistance(); 00044 00051 virtual bool init(CFeatures* l, CFeatures* r); 00052 00054 virtual void cleanup(); 00055 00060 virtual EDistanceType get_distance_type() { return D_BRAYCURTIS; } 00061 00066 virtual const char* get_name() const { return "BrayCurtisDistance"; } 00067 00068 protected: 00072 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00073 }; 00074 } // namespace shogun 00075 #endif /* _BRAYCURTISDISTANCE_H___ */
