MyMediaLite
3.10
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Class for storing sparse matrices More...
Public Member Functions | |
virtual IMatrix< T > | CreateMatrix (int num_rows, int num_columns) |
Create a matrix with a given number of rows and columns | |
void | Resize (int num_rows, int num_cols) |
Grows or shrinks the matrix to the requested size, if necessary | |
SparseMatrix (int num_rows, int num_cols) | |
Create a sparse matrix with a given number of rows | |
virtual IMatrix< T > | Transpose () |
Get the transpose of the matrix, i.e. a matrix where rows and columns are interchanged |
Properties | |
virtual bool | IsSymmetric [get] |
virtual IList< Tuple< int, int > > | NonEmptyEntryIDs [get] |
The row and column IDs of non-empty entries in the matrix | |
int | NumberOfColumns [get, set] |
virtual int | NumberOfNonEmptyEntries [get] |
The number of non-empty entries in the matrix | |
int | NumberOfRows [get] |
virtual T | this[int x, int y] [get, set] |
Access the elements of the sparse matrix | |
Dictionary< int, T > | this[int x] [get] |
Get a row of the matrix |
Class for storing sparse matrices
The data is stored in row-major mode. Indexes are zero-based. Access is internally done by binary search.
T | the matrix element type, must have a default constructor/value |
T | : | new() |
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inlinevirtual |
Create a matrix with a given number of rows and columns
num_rows | the number of rows |
num_columns | the number of columns |
Implements IMatrix< T >.
Reimplemented in SkewSymmetricSparseMatrix, SymmetricSparseMatrix< T >, SymmetricSparseMatrix-g< float >, and SymmetricSparseMatrix-g< int >.
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inline |
Grows or shrinks the matrix to the requested size, if necessary
The new entries are filled with zeros. Obsolete entries are removed.
num_rows | the number of rows |
num_cols | the number of columns |
Implements IMatrix< T >.
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inline |
Create a sparse matrix with a given number of rows
num_rows | the number of rows |
num_cols | the number of columns |
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inlinevirtual |
Get the transpose of the matrix, i.e. a matrix where rows and columns are interchanged
Implements IMatrix< T >.
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get |
The row and column IDs of non-empty entries in the matrix
The row and column IDs of non-empty entries in the matrix
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get |
The number of non-empty entries in the matrix
The number of non-empty entries in the matrix
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getset |
Access the elements of the sparse matrix
x | the row ID |
y | the column ID |
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get |
Get a row of the matrix
x | the row ID |