linbox
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Sparse matrix, Coordinate storage. More...
#include <sparse-hyb-matrix.h>
Public Types | |
typedef _Field | Field |
Field. | |
typedef _Field::Element | Element |
Element. | |
typedef const Element | constElement |
const Element | |
typedef SparseMatrixFormat::HYB | Storage |
Matrix Storage Format. | |
typedef SparseMatrix< _Field, Storage > | Self_t |
Self type. | |
Public Member Functions | |
SparseMatrix () | |
Constructors. More... | |
template<class _OtherStorage > | |
SparseMatrix (const SparseMatrix< _Field, _OtherStorage > &S) | |
Default converter. More... | |
void | importe (const SparseMatrix< _Field, SparseMatrixFormat::CSR > &S) |
Conversions. More... | |
void | optimise () |
void | importe (const SparseMatrix< _Field, SparseMatrixFormat::HYB > &A) |
Import a matrix in CSR format to CSR. More... | |
SparseMatrix< _Field, SparseMatrixFormat::HYB > & | exporte (SparseMatrix< _Field, SparseMatrixFormat::HYB > &S) const |
Export a matrix in CSR format from COO. More... | |
void | transposeIn () |
In place transpose. More... | |
SparseMatrix< _Field, SparseMatrixFormat::HYB > & | transpose (SparseMatrix< _Field, SparseMatrixFormat::HYB > &S) |
Transpose the matrix. More... | |
size_t | rowdim () const |
number of rows. More... | |
size_t | coldim () const |
number of columns. More... | |
size_t | size () const |
Number of non zero elements in the matrix. More... | |
constElement & | getEntry (const size_t &i, const size_t &j) const |
Get a read-only individual entry from the matrix. More... | |
const Element & | setEntry (const size_t &i, const size_t &j, const Element &e) |
Set an individual entry. More... | |
Element & | refEntry (const size_t &i, const size_t &j) |
Get a writeable reference to an entry in the matrix. More... | |
template<class Format > | |
std::ostream & | write (std::ostream &os, Format=SparseFileFormat::CSR()) const |
Write a matrix to the given output stream using field read/write. More... | |
template<class Format > | |
std::istream & | read (std::istream &file, Format fmt=SparseFileFormat::CSR()) |
Read a matrix from the given input stream using field read/write. More... | |
template<class Vector > | |
Vector & | applyTranspose (Vector &y, const Vector &x, const Element &a) const |
bool | consistent () const |
Sparse matrix, Coordinate storage.
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Constructors.
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Default converter.
S | a sparse matrix in any storage. |
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Conversions.
Any sparse matrix has a converter to/from CSR. A specialisation can skip the temporary CSR matrix created.
Import a matrix in CSR format to HYB.
S | HYB matrix to be converted in HYB and optimsed |
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Import a matrix in CSR format to CSR.
S | CSR matrix to be converted in CSR |
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Export a matrix in CSR format from COO.
S | CSR matrix to be converted from COO |
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In place transpose.
Not quite...
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number of rows.
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number of columns.
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Number of non zero elements in the matrix.
or at least the size of the _data if
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Get a read-only individual entry from the matrix.
i | Row _colid |
j | Column _colid |
Set an individual entry.
Setting the entry to 0 will not remove it from the matrix
i | Row _colid of entry |
j | Column _colid of entry |
value | Value of the new entry |
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Get a writeable reference to an entry in the matrix.
If there is no entry at the position (i, j), then a new entry with a value of zero is inserted and a reference to it is returned.
i | Row _colid of entry |
j | Column _colid of entry |
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Write a matrix to the given output stream using field read/write.
os | Output stream to which to write the matrix |
format | Format with which to write |
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Read a matrix from the given input stream using field read/write.
file | Input stream from which to read the matrix |
format | Format of input matrix |
file
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We could end up a line with a marker. A field F would contain an element that does not belong to it. eg a nan for a Givaro::Modular<double>. It could act as a marker.