class Mat

Matrix object.

Inheritance:

Public Fields

int m

Size of the matrix

real** ptr

Data of the matrix

real* base

NULL if not allocated by Mat.

Public Methods

Mat(real** ptr_, int n_rows, int n_cols)

Create a matrix from values in ptr_.

Mat(real* ptr_, int n_rows, int n_cols)

Create a matrix from values in ptr_.

Mat(int n_rows, int n_cols)

Create a new matrix

void copy(Mat* mat)

Copy the matrix mat

void zero()

Zero the matrix

real norm1()

Compute the norm1

real normFrobenius()

Compute the Frobenius norm

real normInf()

Compute the norm inf

Vec* getRow(int row, Vec* vec = NULL)

Return the row row of the matrix.

Vec* getCol(int col, Vec* vec = NULL)

Return the column col of the matrix.

void setRow(int row, Vec* vec)

Set the row row to values in vec

void setCol(int row, Vec* vec)

Set the column col to values in vec

Mat* subMat(int row1, int col1, int row2, int col2)

Return a sub-matrix.

Inherited from Object:

Public Fields

Allocator* allocator

Public Methods

void addOption(const char* name, int size, void* ptr, const char* help="")

void addIOption(const char* name, int* ptr, int init_value, const char* help="")

void addROption(const char* name, real* ptr, real init_value, const char* help="")

void addBOption(const char* name, bool* ptr, bool init_value, const char* help="")

void addOOption(const char* name, Object** ptr, Object* init_value, const char* help="")

void setOption(const char* name, void* ptr)

void setIOption(const char* name, int option)

void setROption(const char* name, real option)

void setBOption(const char* name, bool option)

void setOOption(const char* name, Object* option)

virtual void loadXFile(XFile* file)

virtual void saveXFile(XFile* file)

void load(const char* filename)

void save(const char* filename)

void* operator new(size_t size, Allocator* allocator_=NULL)

void* operator new(size_t size, Allocator* allocator_, void* ptr_)

void operator delete(void* ptr)

Documentation

Matrix object.

int m

Size of the matrix

real** ptr

Data of the matrix

real* base

NULL if not allocated by Mat. (when you're using the first constructor of Mat, or for the matrix returned by subMat)

Mat(real** ptr_, int n_rows, int n_cols)

Create a matrix from values in ptr_. (No memory copy).

Mat(real* ptr_, int n_rows, int n_cols)

Create a matrix from values in ptr_. (No memory copy).

Mat(int n_rows, int n_cols)

Create a new matrix

void copy(Mat* mat)

Copy the matrix mat

void zero()

Zero the matrix

real norm1()

Compute the norm1

real normFrobenius()

Compute the Frobenius norm

real normInf()

Compute the norm inf

Vec* getRow(int row, Vec* vec = NULL)

Return the row row of the matrix. If vec is NULL, return a new vector. Else copy the row in vec.

Vec* getCol(int col, Vec* vec = NULL)

Return the column col of the matrix. If vec is NULL, return a new vector. Else copy the column in vec.

void setRow(int row, Vec* vec)

Set the row row to values in vec

void setCol(int row, Vec* vec)

Set the column col to values in vec

Mat* subMat(int row1, int col1, int row2, int col2)

Return a sub-matrix. Note that the memory is shared with the original matrix, so *be carefull*. You have to destroy the returned matrix.

This class has no child classes.

Author:

Ronan Collobert (collober@idiap.ch)

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