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/DenseDistance.h> 00016 00017 namespace shogun 00018 { 00030 class CBrayCurtisDistance: public CDenseDistance<float64_t> 00031 { 00032 public: 00034 CBrayCurtisDistance(); 00035 00041 CBrayCurtisDistance(CDenseFeatures<float64_t>* l, CDenseFeatures<float64_t>* r); 00042 virtual ~CBrayCurtisDistance(); 00043 00050 virtual bool init(CFeatures* l, CFeatures* r); 00051 00053 virtual void cleanup(); 00054 00059 virtual EDistanceType get_distance_type() { return D_BRAYCURTIS; } 00060 00065 virtual const char* get_name() const { return "BrayCurtisDistance"; } 00066 00067 protected: 00071 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00072 }; 00073 } // namespace shogun 00074 #endif /* _BRAYCURTISDISTANCE_H___ */
