lshkit::Matrix< T > Class Template Reference

Matrix. More...

#include <matrix.h>

List of all members.

Public Member Functions
void	reset (int _dim, int _N)
	Reset the size of matrix.
void	free (void)
	Release memory.
	Matrix ()
	Default constructor.
	Matrix (int _dim, int _N)
	Constructor, same as Matrix() followed immediately by reset().
	~Matrix ()
	Destructor.
const T *	operator[] (int i) const
	Access the ith vector.
T *	operator[] (int i)
	Access the ith vector.
T **const	getVecs () const
	Get the list of vectors (be careful!).
int	getDim () const
int	getSize () const
void	load (const std::string &path)
void	save (const std::string &path)
void	load (std::istream &is)
void	save (std::ostream &os)
	Matrix (const std::string &path)
	Construct from a file.
Static Public Member Functions
static void	peek (const std::string &path, int *elem_size, int *size, int *dim)
	Peek into a file to determine the size and dimension of the dataset.
Classes
class	Accessor
	An accessor class to be used with LSH index. More...

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Detailed Description

template<class T>
class lshkit::Matrix< T >

Matrix.

An matrix of size (NxD) is used to store an array of N D-dimensional vectors.

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Constructor & Destructor Documentation

template<class T>

lshkit::Matrix< T >::Matrix

(

)

[inline]

Default constructor.

Allocates an empty matrix. Should invoke reset or load before using it.

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Member Function Documentation

template<class T>

static void lshkit::Matrix< T >::peek	(	const std::string &	path,
		int *	elem_size,
		int *	size,
		int *	dim
	)			[static]

Peek into a file to determine the size and dimension of the dataset.

Parameters:

	path	File to peek.
	elem_size	Size of the vector element.
	size	Number of vectors in the file.
	dim	Dimension of the vectors.

This function doesn't read the whole matrix into memory, so it is fast.

template<class T>

void lshkit::Matrix< T >::reset	(	int	_dim,
		int	_N
	)			[inline]

Reset the size of matrix.

Parameters:

	dim	Dimension of each feature vector.
	N	Number of feature vectors.

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

• include/lshkit/matrix.h

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