Package no.uib.cipr.matrix.sparse
Class FlexCompRowMatrix
- java.lang.Object
-
- no.uib.cipr.matrix.AbstractMatrix
-
- no.uib.cipr.matrix.sparse.FlexCompRowMatrix
-
- All Implemented Interfaces:
java.lang.Iterable<MatrixEntry>
,Matrix
public class FlexCompRowMatrix extends AbstractMatrix
Matrix stored row-wise into sparse vectors
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from interface no.uib.cipr.matrix.Matrix
Matrix.Norm
-
-
Field Summary
-
Fields inherited from class no.uib.cipr.matrix.AbstractMatrix
numColumns, numRows
-
-
Constructor Summary
Constructors Constructor Description FlexCompRowMatrix(int numRows, int numColumns)
Constructor for FlexCompRowMatrixFlexCompRowMatrix(Matrix A)
Constructor for FlexCompRowMatrixFlexCompRowMatrix(Matrix A, boolean deep)
Constructor for FlexCompRowMatrix
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
add(int row, int column, double value)
A(row,column) += value
void
compact()
Tries to store the matrix as compactly as possibleMatrix
copy()
Creates a deep copy of the matrixdouble
get(int row, int column)
ReturnsA(row,column)
SparseVector
getRow(int i)
Returns the given rowjava.util.Iterator<MatrixEntry>
iterator()
Vector
multAdd(double alpha, Vector x, Vector y)
y = alpha*A*x + y
void
set(int row, int column, double value)
A(row,column) = value
Matrix
set(Matrix B)
A=B
.void
setRow(int i, SparseVector x)
Sets the given row equal the passed vectorVector
transMultAdd(double alpha, Vector x, Vector y)
y = alpha*AT*x + y
FlexCompRowMatrix
zero()
Zeros all the entries in the matrix, while preserving any underlying structure.-
Methods inherited from class no.uib.cipr.matrix.AbstractMatrix
add, add, check, checkMultAdd, checkMultAdd, checkRank1, checkRank1, checkRank2, checkRank2, checkSize, checkSolve, checkSolve, checkTransABmultAdd, checkTransAmultAdd, checkTransBmultAdd, checkTransMultAdd, checkTranspose, checkTranspose, checkTransRank1, checkTransRank2, isSquare, max, max, mult, mult, mult, mult, multAdd, multAdd, multAdd, norm, norm1, normF, normInf, numColumns, numRows, rank1, rank1, rank1, rank1, rank1, rank1, rank2, rank2, rank2, rank2, scale, set, solve, solve, toString, transABmult, transABmult, transABmultAdd, transABmultAdd, transAmult, transAmult, transAmultAdd, transAmultAdd, transBmult, transBmult, transBmultAdd, transBmultAdd, transMult, transMult, transMultAdd, transpose, transpose, transRank1, transRank1, transRank2, transRank2, transSolve, transSolve
-
-
-
-
Constructor Detail
-
FlexCompRowMatrix
public FlexCompRowMatrix(int numRows, int numColumns)
Constructor for FlexCompRowMatrix- Parameters:
numRows
- Number of rowsnumColumns
- Number of column
-
FlexCompRowMatrix
public FlexCompRowMatrix(Matrix A, boolean deep)
Constructor for FlexCompRowMatrix- Parameters:
A
- Matrix to copy contents fromdeep
- True for a deep copy, false for a reference copy. A reference copy can only be made of anFlexCompRowMatrix
-
FlexCompRowMatrix
public FlexCompRowMatrix(Matrix A)
Constructor for FlexCompRowMatrix- Parameters:
A
- Matrix to copy contents from. The copy will be deep
-
-
Method Detail
-
getRow
public SparseVector getRow(int i)
Returns the given row
-
setRow
public void setRow(int i, SparseVector x)
Sets the given row equal the passed vector
-
multAdd
public Vector multAdd(double alpha, Vector x, Vector y)
Description copied from interface:Matrix
y = alpha*A*x + y
- Specified by:
multAdd
in interfaceMatrix
- Overrides:
multAdd
in classAbstractMatrix
x
- Vector of sizeA.numColumns()
y
- Vector of sizeA.numRows()
- Returns:
- y
-
transMultAdd
public Vector transMultAdd(double alpha, Vector x, Vector y)
Description copied from interface:Matrix
y = alpha*AT*x + y
- Specified by:
transMultAdd
in interfaceMatrix
- Overrides:
transMultAdd
in classAbstractMatrix
x
- Vector of sizeA.numRows()
y
- Vector of sizeA.numColumns()
- Returns:
- y
-
add
public void add(int row, int column, double value)
Description copied from interface:Matrix
A(row,column) += value
- Specified by:
add
in interfaceMatrix
- Overrides:
add
in classAbstractMatrix
-
set
public void set(int row, int column, double value)
Description copied from interface:Matrix
A(row,column) = value
- Specified by:
set
in interfaceMatrix
- Overrides:
set
in classAbstractMatrix
-
get
public double get(int row, int column)
Description copied from interface:Matrix
ReturnsA(row,column)
- Specified by:
get
in interfaceMatrix
- Overrides:
get
in classAbstractMatrix
-
iterator
public java.util.Iterator<MatrixEntry> iterator()
- Specified by:
iterator
in interfacejava.lang.Iterable<MatrixEntry>
- Overrides:
iterator
in classAbstractMatrix
-
copy
public Matrix copy()
Description copied from interface:Matrix
Creates a deep copy of the matrix- Specified by:
copy
in interfaceMatrix
- Overrides:
copy
in classAbstractMatrix
- Returns:
- A
-
zero
public FlexCompRowMatrix zero()
Description copied from interface:Matrix
Zeros all the entries in the matrix, while preserving any underlying structure. Useful for general, unstructured matrices.- Specified by:
zero
in interfaceMatrix
- Overrides:
zero
in classAbstractMatrix
- Returns:
- A
-
set
public Matrix set(Matrix B)
Description copied from interface:Matrix
A=B
. The matrices must be of the same size- Specified by:
set
in interfaceMatrix
- Overrides:
set
in classAbstractMatrix
- Returns:
- A
-
compact
public void compact()
Tries to store the matrix as compactly as possible
-
-