Package no.uib.cipr.matrix.sparse
Class FlexCompColMatrix
- java.lang.Object
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- no.uib.cipr.matrix.AbstractMatrix
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- no.uib.cipr.matrix.sparse.FlexCompColMatrix
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- All Implemented Interfaces:
java.lang.Iterable<MatrixEntry>
,Matrix
public class FlexCompColMatrix extends AbstractMatrix
Matrix stored column-wise into sparse vectors
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Nested Class Summary
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Nested classes/interfaces inherited from interface no.uib.cipr.matrix.Matrix
Matrix.Norm
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Field Summary
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Fields inherited from class no.uib.cipr.matrix.AbstractMatrix
numColumns, numRows
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Constructor Summary
Constructors Constructor Description FlexCompColMatrix(int numRows, int numColumns)
Constructor for FlexCompColMatrixFlexCompColMatrix(Matrix A)
Constructor for FlexCompColMatrixFlexCompColMatrix(Matrix A, boolean deep)
Constructor for FlexCompColMatrix
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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 possibleFlexCompColMatrix
copy()
Creates a deep copy of the matrixdouble
get(int row, int column)
ReturnsA(row,column)
SparseVector
getColumn(int i)
Returns the given columnjava.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
void
setColumn(int i, SparseVector x)
Sets the given column equal the passed vectorVector
transMultAdd(double alpha, Vector x, Vector y)
y = alpha*AT*x + y
FlexCompColMatrix
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, 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
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Constructor Detail
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FlexCompColMatrix
public FlexCompColMatrix(int numRows, int numColumns)
Constructor for FlexCompColMatrix- Parameters:
numRows
- Number of rowsnumColumns
- Number of column
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FlexCompColMatrix
public FlexCompColMatrix(Matrix A, boolean deep)
Constructor for FlexCompColMatrix- 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 anFlexCompColMatrix
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FlexCompColMatrix
public FlexCompColMatrix(Matrix A)
Constructor for FlexCompColMatrix- Parameters:
A
- Matrix to copy contents from. The copy will be deep
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Method Detail
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getColumn
public SparseVector getColumn(int i)
Returns the given column
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setColumn
public void setColumn(int i, SparseVector x)
Sets the given column equal the passed vector
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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
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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
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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
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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
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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
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iterator
public java.util.Iterator<MatrixEntry> iterator()
- Specified by:
iterator
in interfacejava.lang.Iterable<MatrixEntry>
- Overrides:
iterator
in classAbstractMatrix
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copy
public FlexCompColMatrix copy()
Description copied from interface:Matrix
Creates a deep copy of the matrix- Specified by:
copy
in interfaceMatrix
- Overrides:
copy
in classAbstractMatrix
- Returns:
- A
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zero
public FlexCompColMatrix 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
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compact
public void compact()
Tries to store the matrix as compactly as possible
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