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DenseLabels.h
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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) 1999-2009 Soeren Sonnenburg
00008  * Written (W) 1999-2008 Gunnar Raetsch
00009  * Written (W) 2011 Heiko Strathmann
00010  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
00011  */
00012 
00013 #ifndef _DENSE_LABELS__H__
00014 #define _DENSE_LABELS__H__
00015 
00016 #include <shogun/lib/common.h>
00017 #include <shogun/io/File.h>
00018 #include <shogun/labels/Labels.h>
00019 #include <shogun/features/SubsetStack.h>
00020 
00021 namespace shogun
00022 {
00023     class CFile;
00024 
00033 class CDenseLabels : public CLabels
00034 {
00035     public:
00037         CDenseLabels();
00038 
00043         CDenseLabels(int32_t num_labels);
00044 
00049         CDenseLabels(CFile* loader);
00050 
00052         virtual ~CDenseLabels();
00053 
00060         virtual void ensure_valid(const char* context=NULL);
00061 
00068         virtual void load(CFile* loader);
00069 
00076         virtual void save(CFile* writer);
00077 
00086         bool set_label(int32_t idx, float64_t label);
00087 
00096         bool set_int_label(int32_t idx, int32_t label);
00097 
00105         float64_t get_label(int32_t idx);
00106 
00114         int32_t get_int_label(int32_t idx);
00115 
00120         SGVector<float64_t> get_labels();
00121 
00128         SGVector<float64_t> get_labels_copy();
00129 
00136         void set_labels(SGVector<float64_t> v);
00137 
00143         void set_to_one();
00144 
00150         void zero();
00151 
00159         void set_to_const(float64_t c);
00160 
00167         SGVector<int32_t> get_int_labels();
00168 
00175         void set_int_labels(SGVector<int32_t> labels);
00176 
00177 #if !defined(SWIGJAVA) && !defined(SWIGCSHARP)
00178 
00184         void set_int_labels(SGVector<int64_t> labels);
00185 #endif
00186 
00191         virtual int32_t get_num_labels() const;
00192 
00197         virtual ELabelType get_label_type() const=0;
00198 
00199     public:
00201         static const int32_t REJECTION_LABEL = -2;
00202 
00203     private:
00204         void init();
00205 
00206     protected:
00208         SGVector<float64_t> m_labels;
00209 };
00210 }
00211 #endif
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