template<class T> class ColMat

Column oriented matrix class.

Public Fields

Vector<T> v_

Stores the matrix elements

Public Methods

ColMat()

Constructor with no arguments (no memory allocation is performed).

ColMat(size_t i, size_t j)

Create matrix.

ColMat(size_t i, size_t j, const T& e)

Create matrix.

ColMat<T> operator-()

Negation operator (elementwise).

ColMat<T> operator+=(const T f)

Add "f" to every matrix element.

ColMat<T> operator-=(const T f)

Subtract "f" from each matrix element.

ColMat<T> operator*=(const T f)

Multiply each matrix element by the value of "f".

ColMat<T> operator/=(const T f)

Divide each matrix element by "f".

ColMat<T> operator+=(const ColMat<T> &b)

Add another matrix "b".

ColMat<T> operator-=(const ColMat<T> &b)

Subtract another matrix "b" from itself.

ColMat<T> operator*=(const ColMat<T> &b)

Multiply each matrix element (of the matrix on the left of "*=") by the corresponding element of the "b" matrix

ColMat<T> operator/=(const ColMat<T> &b)

Divide each matrix element (of the matrix on the left of "*=") by the corresponding element of the "b" matrix

void random(void)

The function that fills in the matrix with random elements between 0 and 1 (two subsequent calls to random will generate different elements).

inline T& operator()(size_t i, size_t j)

Indexing operator.

inline const T& operator()(size_t i, size_t j) const

Indexing operator.

ColMat<T> & operator=(const T&)

Assignment operator.

ColMat<T> operator()(const Vector<size_t> &I, const Vector<size_t> &J ) const

Array slicing.

Vector<T> operator()(const Vector<size_t> &I, const size_t j ) const

Array slicing.

Vector<T> operator()(const size_t i, const Vector<size_t> &J ) const

Array slicing.

size_t size(size_t i) const

Get Matrix sizes.

size_t isize() const

Get the number of rows.

size_t jsize() const

Get the number of columns.

ColMat<T> & newsize(size_t, size_t)

Resize the matrix.

ColMat<T> & alloc(const size_t nr, const size_t nc)

Allocate space.

Documentation

Column oriented matrix class.

Matrices are column majored, ie elements in a column are adjacent in memory. This implementation can be used with Lapack and is compatible with the Fortran array layout, but not with the "C/C++" array layout.

Vector<T> v_

Stores the matrix elements

ColMat()

Constructor with no arguments (no memory allocation is performed).

ColMat(size_t i, size_t j)

Create matrix. Elements are not set.

Parameters:

i - no. of rows
j - no. of columns.

ColMat(size_t i, size_t j, const T& e)

Create matrix. Elelemnts are set.

Parameters:

i - the number of rows
j - the number of columns
e - value of each element

ColMat<T> operator-()

Negation operator (elementwise).

ColMat<T> operator+=(const T f)

Add "f" to every matrix element.

ColMat<T> operator-=(const T f)

Subtract "f" from each matrix element.

ColMat<T> operator*=(const T f)

Multiply each matrix element by the value of "f".

ColMat<T> operator/=(const T f)

Divide each matrix element by "f".

ColMat<T> operator+=(const ColMat<T> &b)

Add another matrix "b".

ColMat<T> operator-=(const ColMat<T> &b)

Subtract another matrix "b" from itself.

ColMat<T> operator*=(const ColMat<T> &b)

Multiply each matrix element (of the matrix on the left of "*=") by the corresponding element of the "b" matrix

ColMat<T> operator/=(const ColMat<T> &b)

Divide each matrix element (of the matrix on the left of "*=") by the corresponding element of the "b" matrix

void random(void)

The function that fills in the matrix with random elements between 0 and 1 (two subsequent calls to random will generate different elements).

inline T& operator()(size_t i, size_t j)

Indexing operator.

Parameters:

i - the row number
j - the column number

Returns:

reference to an element pointed by i and j

inline const T& operator()(size_t i, size_t j) const

Indexing operator.

Parameters:

i - the row number
j - the column number

Returns:

reference to an element pointed by i and j

ColMat<T> & operator=(const T&)

Assignment operator. Set all elements.

ColMat<T> operator()(const Vector<size_t> &I, const Vector<size_t> &J ) const

Array slicing. Given 2 integer vectors I and J.

Vector<T> operator()(const Vector<size_t> &I, const size_t j ) const

Array slicing. Given the integer vector I and a index j.

Vector<T> operator()(const size_t i, const Vector<size_t> &J ) const

Array slicing. Given index i and the integer vector J.

size_t size(size_t i) const

Get Matrix sizes. The argument should be either 1 or 0

Parameters:

i - =0 to get the number of columns, =0 to get the number of rows.

Returns:

size

size_t isize() const

Get the number of rows.

size_t jsize() const

Get the number of columns.

ColMat<T> & newsize(size_t, size_t)

Resize the matrix.

ColMat<T> & alloc(const size_t nr, const size_t nc)

Allocate space. Elements are not initialized.

This class has no child classes.

Alphabetic index HTML hierarchy of classes or Java