SGSparseMatrix< T > Class Template Reference

Detailed Description

template<class T>
class shogun::SGSparseMatrix< T >

template class SGSparseMatrix

Definition at line 27 of file SGSparseMatrix.h.

Inheritance diagram for SGSparseMatrix< T >:

Public Member Functions
	SGSparseMatrix ()
	SGSparseMatrix (SGSparseVector< T > *vecs, index_t num_feat, index_t num_vec, bool ref_counting=true)
	SGSparseMatrix (index_t num_feat, index_t num_vec, bool ref_counting=true)
	SGSparseMatrix (const SGSparseMatrix &orig)
virtual	~SGSparseMatrix ()
const SGSparseVector< T > &	operator[] (index_t index) const
SGSparseVector< T > &	operator[] (index_t index)
SGSparseMatrix< T >	get ()
void	load (CFile *loader)
void	save (CFile *saver)
int32_t	ref_count ()

Public Attributes
index_t	num_vectors
	total number of vectors
index_t	num_features
	total number of features
SGSparseVector< T > *	sparse_matrix
	array of sparse vectors of size num_vectors

Protected Member Functions
virtual void	copy_data (const SGReferencedData &orig)
virtual void	init_data ()
virtual void	free_data ()
void	copy_refcount (const SGReferencedData &orig)
int32_t	ref ()
int32_t	unref ()

Constructor & Destructor Documentation

SGSparseMatrix

(

)

default constructor

Definition at line 8 of file SGSparseMatrix.cpp.

SGSparseMatrix	(	SGSparseVector< T > *	vecs,
		index_t	num_feat,
		index_t	num_vec,
		bool	ref_counting = true
	)

constructor for setting params

Definition at line 14 of file SGSparseMatrix.cpp.

SGSparseMatrix	(	index_t	num_feat,
		index_t	num_vec,
		bool	ref_counting = true
	)

constructor to create new matrix in memory

Definition at line 23 of file SGSparseMatrix.cpp.

SGSparseMatrix

(

const SGSparseMatrix< T > &

orig

)

copy constructor

Definition at line 31 of file SGSparseMatrix.cpp.

~SGSparseMatrix ( )

virtual

destructor

Definition at line 37 of file SGSparseMatrix.cpp.

Member Function Documentation

void copy_data ( const SGReferencedData &  orig )

protectedvirtual

copy data

Implements SGReferencedData.

Definition at line 65 of file SGSparseMatrix.cpp.

void copy_refcount ( const SGReferencedData &  orig )

protectedinherited

copy refcount

Definition at line 67 of file SGReferencedData.cpp.

void free_data ( )

protectedvirtual

free data

Implements SGReferencedData.

Definition at line 81 of file SGSparseMatrix.cpp.

SGSparseMatrix<T> get

(

)

get the sparse matrix (no copying is done here)

Returns

the refcount increased matrix

Definition at line 63 of file SGSparseMatrix.h.

void init_data ( )

protectedvirtual

init data

Implements SGReferencedData.

Definition at line 73 of file SGSparseMatrix.cpp.

void load

(

CFile *

loader

)

load sparse matrix from file

Parameters

loader

File object via which to load data

Definition at line 43 of file SGSparseMatrix.cpp.

const SGSparseVector<T>& operator[]

(

index_t

index

)

const

index access operator

Definition at line 47 of file SGSparseMatrix.h.

SGSparseVector<T>& operator[]

(

index_t

index

)

index access operator

Definition at line 53 of file SGSparseMatrix.h.

int32_t ref ( )

protectedinherited

increase reference counter

Returns

reference count

Definition at line 76 of file SGReferencedData.cpp.

int32_t ref_count ( )

inherited

display reference counter

Returns

reference count

Definition at line 47 of file SGReferencedData.cpp.

void save

(

CFile *

saver

)

save sparse matrix to file

Parameters

saver

File object via which to save data

Definition at line 54 of file SGSparseMatrix.cpp.

int32_t unref ( )

protectedinherited

decrement reference counter and deallocate object if refcount is zero before or after decrementing it

Returns

reference count

Definition at line 101 of file SGReferencedData.cpp.

Member Data Documentation

index_t num_features

total number of features

Definition at line 97 of file SGSparseMatrix.h.

index_t num_vectors

total number of vectors

Definition at line 94 of file SGSparseMatrix.h.

SGSparseVector<T>* sparse_matrix

array of sparse vectors of size num_vectors

Definition at line 100 of file SGSparseMatrix.h.

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The documentation for this class was generated from the following files:

• SGSparseMatrix.h
• SGSparseMatrix.cpp