The graph of a sparse matrix. More...
#include <sparsematrix.hpp>
Inheritance diagram for ngla::MatrixGraph:
Public Member Functions | |
| MatrixGraph (const Array< int > &elsperrow, int awidth) | |
| arbitrary number of els/row | |
| MatrixGraph (int as, int max_elsperrow) | |
| matrix of height as, uniform number of els/row | |
| MatrixGraph (const MatrixGraph &graph, bool stealgraph) | |
| shadow matrix graph | |
| MatrixGraph (int size, const Table< int > &rowelements, const Table< int > &colelements, bool symmetric) | |
| void | Compress () |
| eliminate unused columne indices (was never implemented) | |
| int | GetPosition (int i, int j) const |
| returns position of Element (i, j), exception for unused | |
| int | GetPositionTest (int i, int j) const |
| returns position of Element (i, j), -1 for unused | |
| void | GetPositionsSorted (int row, int n, int *pos) const |
| find positions of n sorted elements, overwrite pos, exception for unused | |
| int | CreatePosition (int i, int j) |
| returns position of new element | |
| int | Size () const |
| size_t | NZE () const |
| FlatArray< int > | GetRowIndices (int i) const |
| size_t | First (int i) const |
| void | FindSameNZE () |
| ostream & | Print (ostream &ost) const |
| virtual void | MemoryUsage (Array< MemoryUsageStruct * > &mu) const |
Protected Attributes | |
| int | size |
| number of rows | |
| int | width |
| with of matrix | |
| size_t | nze |
| non-zero elements | |
| Array< int, size_t > | colnr |
| column numbers | |
| Array< size_t, size_t > | firsti |
| pointer to first in row | |
| Array< int > | same_nze |
| row has same non-zero elements as previous row | |
| bool | owner |
| owner of arrays ? | |
Detailed Description
The graph of a sparse matrix.
The documentation for this class was generated from the following file:
- linalg/sparsematrix.hpp
