SymmetricMatrix< T > Class Template Reference

Class for storing dense matrices. More...

Inheritance diagram for SymmetricMatrix< T >:

List of all members.

Public Member Functions
IMatrix< T >	CreateMatrix (int num_rows, int num_columns)
	Create a matrix with a given number of rows and columns.
void	Resize (int size)
	Resize to the given size.
void	Resize (int num_rows, int num_columns)
	Grows or shrinks the matrix to the requested size, if necessary.
	SymmetricMatrix (int dim)
	Initializes a new instance of the SymmetricMatrix class.
IMatrix< T >	Transpose ()
	Get the transpose of the matrix, i.e. a matrix where rows and columns are interchanged.
Public Attributes
int	dim
	Dimension, the number of rows and columns.
Protected Attributes
internal T[][]	data
	Data array: data is stored in columns.
Properties
virtual bool	IsSymmetric [get]
	True if the matrix is stored in a symmetric manner, false otherwise.
int	NumberOfColumns [get]
	The number of columns of the matrix.
int	NumberOfRows [get]
	The number of rows of the matrix.
virtual T	this[int i, int j] [get, set]
T	this[int x, int y] [get, set]
	The value at (i,j)

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Detailed Description

template<T>
class MyMediaLite::DataType::SymmetricMatrix< T >

Class for storing dense matrices.

The data is stored in row-major mode. Indexes are zero-based.

Template Parameters:

T	the type of the matrix entries

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Member Function Documentation

IMatrix<T> CreateMatrix	(	int	num_rows,
		int	num_columns
	)		[inline]

Create a matrix with a given number of rows and columns.

Parameters:

num_rows	the number of rows
num_columns	the number of columns

Returns:

A matrix with num_rows rows and num_column columns

Implements IMatrix< T >.

void Resize

(

int

size

)

[inline]

Resize to the given size.

Parameters:

size

the size

void Resize	(	int	num_rows,
		int	num_cols
	)		[inline]

Grows or shrinks the matrix to the requested size, if necessary.

The new entries are filled with zeros. Obsolete entries are removed.

Parameters:

num_rows	the number of rows
num_cols	the number of columns

Implements IMatrix< T >.

SymmetricMatrix

(

int

dim

)

[inline]

Initializes a new instance of the SymmetricMatrix class.

Parameters:

dim	the number of rows and columns

IMatrix<T> Transpose

(

)

[inline]

Get the transpose of the matrix, i.e. a matrix where rows and columns are interchanged.

Returns:

the transpose of the matrix (copy)

Implements IMatrix< T >.

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Member Data Documentation

internal T [][] data [protected]

Data array: data is stored in columns.

int dim

Dimension, the number of rows and columns.

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Property Documentation

virtual bool IsSymmetric [get]

True if the matrix is stored in a symmetric manner, false otherwise.

Also true for skew symmetric matrices that exploit this property in order to save memory

Implements IMatrix< T >.

int NumberOfColumns [get]

The number of columns of the matrix.

The number of columns of the matrix

Implements IMatrix< T >.

int NumberOfRows [get]

The number of rows of the matrix.

The number of rows of the matrix

Implements IMatrix< T >.

T this[int x, int y] [get, set, inherited]

The value at (i,j)

The value at (i,j)

Parameters:

x	the row ID
y	the column ID

Implemented in SparseMatrix< T >, SparseBooleanMatrix, SkewSymmetricSparseMatrix, and SymmetricSparseMatrix< T >.

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

• SymmetricMatrix.cs