/usr/include/shogun/classifier/svm/SVMLin.h is in libshogun-dev 3.2.0-7.3build4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | /*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * Written (W) 2006-2009 Soeren Sonnenburg
 * Copyright (C) 2006-2009 Fraunhofer Institute FIRST and Max-Planck-Society
 */
#ifndef _SVMLIN_H___
#define _SVMLIN_H___
#include <shogun/lib/common.h>
#include <shogun/machine/LinearMachine.h>
#include <shogun/features/DotFeatures.h>
#include <shogun/labels/Labels.h>
namespace shogun
{
/** @brief class SVMLin */
class CSVMLin : public CLinearMachine
{
	public:
		/** problem type */
		MACHINE_PROBLEM_TYPE(PT_BINARY);
		/** default constructor */
		CSVMLin();
		/** constructor
		 *
		 * @param C constant C
		 * @param traindat training features
		 * @param trainlab labels for features
		 */
		CSVMLin(
			float64_t C, CDotFeatures* traindat,
			CLabels* trainlab);
		virtual ~CSVMLin();
		/** get classifier type
		 *
		 * @return classifier type SVMLIN
		 */
		virtual EMachineType get_classifier_type() { return CT_SVMLIN; }
		/** set C
		 *
		 * @param c_neg new C constant for negatively labeled examples
		 * @param c_pos new C constant for positively labeled examples
		 *
		 */
		inline void set_C(float64_t c_neg, float64_t c_pos) { C1=c_neg; C2=c_pos; }
		/** get C1
		 *
		 * @return C1
		 */
		inline float64_t get_C1() { return C1; }
		/** get C2
		 *
		 * @return C2
		 */
		inline float64_t get_C2() { return C2; }
		/** set if bias shall be enabled
		 *
		 * @param enable_bias if bias shall be enabled
		 */
		inline void set_bias_enabled(bool enable_bias) { use_bias=enable_bias; }
		/** get if bias is enabled
		 *
		 * @return if bias is enabled
		 */
		inline bool get_bias_enabled() { return use_bias; }
		/** set epsilon
		 *
		 * @param eps new epsilon
		 */
		inline void set_epsilon(float64_t eps) { epsilon=eps; }
		/** get epsilon
		 *
		 * @return epsilon
		 */
		inline float64_t get_epsilon() { return epsilon; }
		/** @return object name */
		virtual const char* get_name() const { return "SVMLin"; }
	protected:
		/** train SVM classifier
		 *
		 * @param data training data (parameter can be avoided if distance or
		 * kernel-based classifiers are used and distance/kernels are
		 * initialized with train data)
		 *
		 * @return whether training was successful
		 */
		virtual bool train_machine(CFeatures* data=NULL);
	protected:
		/** C1 */
		float64_t C1;
		/** C2 */
		float64_t C2;
		/** epsilon */
		float64_t epsilon;
		/** if bias is used */
		bool use_bias;
};
}
#endif
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