Serializable
, AnyMatrix
, RealLinearOperator
, RealMatrix
public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializable
RealMatrix
using a double[][]
array to
store entries.Constructor | Description |
---|---|
Array2DRowRealMatrix() |
Creates a matrix with no data
|
Array2DRowRealMatrix(double[] v) |
Create a new (column) RealMatrix using
v as the
data for the unique column of the created matrix. |
Array2DRowRealMatrix(double[][] d) |
Create a new
RealMatrix using the input array as the underlying
data array. |
Array2DRowRealMatrix(double[][] d,
boolean copyArray) |
Create a new RealMatrix using the input array as the underlying
data array.
|
Array2DRowRealMatrix(int rowDimension,
int columnDimension) |
Create a new RealMatrix with the supplied row and column dimensions.
|
Modifier and Type | Method | Description |
---|---|---|
Array2DRowRealMatrix |
add(Array2DRowRealMatrix m) |
Compute the sum of
this and m . |
void |
addToEntry(int row,
int column,
double increment) |
Adds (in place) the specified value to the specified entry of
this matrix. |
RealMatrix |
copy() |
Returns a (deep) copy of this.
|
RealMatrix |
createMatrix(int rowDimension,
int columnDimension) |
Create a new RealMatrix of the same type as the instance with the
supplied
row and column dimensions.
|
int |
getColumnDimension() |
Returns the number of columns of this matrix.
|
double[][] |
getData() |
Returns matrix entries as a two-dimensional array.
|
double[][] |
getDataRef() |
Get a reference to the underlying data array.
|
double |
getEntry(int row,
int column) |
Get the entry in the specified row and column.
|
double[] |
getRow(int row) |
Get the entries at the given row index.
|
int |
getRowDimension() |
Returns the number of rows of this matrix.
|
RealMatrix |
getSubMatrix(int startRow,
int endRow,
int startColumn,
int endColumn) |
Gets a submatrix.
|
RealMatrix |
kroneckerProduct(RealMatrix b) |
Kronecker product of the current matrix and the parameter matrix.
|
Array2DRowRealMatrix |
multiply(Array2DRowRealMatrix m) |
Returns the result of postmultiplying
this by m . |
void |
multiplyEntry(int row,
int column,
double factor) |
Multiplies (in place) the specified entry of
this matrix by the
specified value. |
RealMatrix |
multiplyTransposed(Array2DRowRealMatrix m) |
Returns the result of postmultiplying
this by m^T . |
RealMatrix |
multiplyTransposed(RealMatrix m) |
Returns the result of postmultiplying
this by m^T . |
double[] |
operate(double[] v) |
Returns the result of multiplying this by the vector
v . |
double[] |
preMultiply(double[] v) |
Returns the (row) vector result of premultiplying this by the vector
v . |
void |
setEntry(int row,
int column,
double value) |
Set the entry in the specified row and column.
|
void |
setRow(int row,
double[] array) |
Sets the specified
row of this matrix to the entries
of the specified array . |
void |
setSubMatrix(double[][] subMatrix,
int row,
int column) |
Replace the submatrix starting at
row, column using data in the
input subMatrix array. |
RealMatrix |
stack() |
Transforms a matrix in a vector (Vectorization).
|
Array2DRowRealMatrix |
subtract(Array2DRowRealMatrix m) |
Returns
this minus m . |
RealMatrix |
transposeMultiply(Array2DRowRealMatrix m) |
Returns the result of postmultiplying
this^T by m . |
RealMatrix |
transposeMultiply(RealMatrix m) |
Returns the result of postmultiplying
this^T by m . |
RealMatrix |
unstackSquare() |
Transforms a one-column stacked matrix into a squared matrix (devectorization).
|
double |
walkInColumnOrder(RealMatrixChangingVisitor visitor) |
Visit (and possibly change) all matrix entries in column order.
|
double |
walkInColumnOrder(RealMatrixChangingVisitor visitor,
int startRow,
int endRow,
int startColumn,
int endColumn) |
Visit (and possibly change) some matrix entries in column order.
|
double |
walkInColumnOrder(RealMatrixPreservingVisitor visitor) |
Visit (but don't change) all matrix entries in column order.
|
double |
walkInColumnOrder(RealMatrixPreservingVisitor visitor,
int startRow,
int endRow,
int startColumn,
int endColumn) |
Visit (but don't change) some matrix entries in column order.
|
double |
walkInRowOrder(RealMatrixChangingVisitor visitor) |
Visit (and possibly change) all matrix entries in row order.
|
double |
walkInRowOrder(RealMatrixChangingVisitor visitor,
int startRow,
int endRow,
int startColumn,
int endColumn) |
Visit (and possibly change) some matrix entries in row order.
|
double |
walkInRowOrder(RealMatrixPreservingVisitor visitor) |
Visit (but don't change) all matrix entries in row order.
|
double |
walkInRowOrder(RealMatrixPreservingVisitor visitor,
int startRow,
int endRow,
int startColumn,
int endColumn) |
Visit (but don't change) some matrix entries in row order.
|
add, copySubMatrix, copySubMatrix, equals, getColumn, getColumnMatrix, getColumnVector, getFrobeniusNorm, getNorm, getRowMatrix, getRowVector, getSubMatrix, getTrace, hashCode, isSquare, multiply, operate, power, preMultiply, preMultiply, scalarAdd, scalarMultiply, setColumn, setColumnMatrix, setColumnVector, setRowMatrix, setRowVector, subtract, toString, transpose, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
isTransposable, operateTranspose
public Array2DRowRealMatrix()
public Array2DRowRealMatrix(int rowDimension, int columnDimension) throws MathIllegalArgumentException
rowDimension
- Number of rows in the new matrix.columnDimension
- Number of columns in the new matrix.MathIllegalArgumentException
- if the row or column dimension is
not positive.public Array2DRowRealMatrix(double[][] d) throws MathIllegalArgumentException, NullArgumentException
RealMatrix
using the input array as the underlying
data array.
The input array is copied, not referenced. This constructor has
the same effect as calling Array2DRowRealMatrix(double[][], boolean)
with the second argument set to true
.
d
- Data for the new matrix.MathIllegalArgumentException
- if d
is not rectangular.MathIllegalArgumentException
- if d
row or column dimension is zero.NullArgumentException
- if d
is null
.Array2DRowRealMatrix(double[][], boolean)
public Array2DRowRealMatrix(double[][] d, boolean copyArray) throws MathIllegalArgumentException, NullArgumentException
copyArray
may be
set to false
. This will prevent the copying and improve
performance as no new array will be built and no data will be copied.d
- Data for new matrix.copyArray
- if true
, the input array will be copied,
otherwise it will be referenced.MathIllegalArgumentException
- if d
is not rectangular.MathIllegalArgumentException
- if d
row or column dimension is zero.NullArgumentException
- if d
is null
.Array2DRowRealMatrix(double[][])
public Array2DRowRealMatrix(double[] v)
v
as the
data for the unique column of the created matrix.
The input array is copied.v
- Column vector holding data for new matrix.public RealMatrix createMatrix(int rowDimension, int columnDimension) throws MathIllegalArgumentException
createMatrix
in interface RealMatrix
createMatrix
in class AbstractRealMatrix
rowDimension
- the number of rows in the new matrixcolumnDimension
- the number of columns in the new matrixMathIllegalArgumentException
- if row or column dimension is not
positive.public RealMatrix copy()
copy
in interface RealMatrix
copy
in class AbstractRealMatrix
public Array2DRowRealMatrix add(Array2DRowRealMatrix m) throws MathIllegalArgumentException
this
and m
.m
- Matrix to be added.this + m
.MathIllegalArgumentException
- if m
is not the same
size as this
.public Array2DRowRealMatrix subtract(Array2DRowRealMatrix m) throws MathIllegalArgumentException
this
minus m
.m
- Matrix to be subtracted.this - m
MathIllegalArgumentException
- if m
is not the same
size as this
.public Array2DRowRealMatrix multiply(Array2DRowRealMatrix m) throws MathIllegalArgumentException
this
by m
.m
- matrix to postmultiply bythis * m
MathIllegalArgumentException
- if
columnDimension(this) != rowDimension(m)
public RealMatrix multiplyTransposed(Array2DRowRealMatrix m) throws MathIllegalArgumentException
this
by m^T
.m
- matrix to first transpose and second postmultiply bythis * m^T
MathIllegalArgumentException
- if
columnDimension(this) != columnDimension(m)
public RealMatrix multiplyTransposed(RealMatrix m)
this
by m^T
.
This is equivalent to call multiply
(m.RealMatrix.transpose()
),
but some implementations may avoid building the intermediate transposed matrix.
multiplyTransposed
in interface RealMatrix
m
- matrix to first transpose and second postmultiply bythis * m^T
public RealMatrix transposeMultiply(Array2DRowRealMatrix m) throws MathIllegalArgumentException
this^T
by m
.m
- matrix to postmultiply bythis^T * m
MathIllegalArgumentException
- if
columnDimension(this) != columnDimension(m)
public RealMatrix transposeMultiply(RealMatrix m)
this^T
by m
.
This is equivalent to call RealMatrix.transpose()
.multiply(m)
,
but some implementations may avoid building the intermediate transposed matrix.
transposeMultiply
in interface RealMatrix
m
- matrix to postmultiply bythis^T * m
public double[][] getData()
getData
in interface RealMatrix
getData
in class AbstractRealMatrix
public double[][] getDataRef()
public void setSubMatrix(double[][] subMatrix, int row, int column) throws MathIllegalArgumentException, NullArgumentException
row, column
using data in the
input subMatrix
array. Indexes are 0-based.
Example:
Starting with
1 2 3 4 5 6 7 8 9 0 1 2and
subMatrix = {{3, 4} {5,6}}
, invoking
setSubMatrix(subMatrix,1,1))
will result in 1 2 3 4 5 3 4 8 9 5 6 2
setSubMatrix
in interface RealMatrix
setSubMatrix
in class AbstractRealMatrix
subMatrix
- array containing the submatrix replacement datarow
- row coordinate of the top, left element to be replacedcolumn
- column coordinate of the top, left element to be replacedMathIllegalArgumentException
- if subMatrix
is empty.NullArgumentException
- if subMatrix
is null
.public double getEntry(int row, int column) throws MathIllegalArgumentException
getEntry
in interface RealMatrix
getEntry
in class AbstractRealMatrix
row
- Row index of entry to be fetched.column
- Column index of entry to be fetched.(row, column)
.MathIllegalArgumentException
- if the row or column index is not valid.public void setEntry(int row, int column, double value) throws MathIllegalArgumentException
setEntry
in interface RealMatrix
setEntry
in class AbstractRealMatrix
row
- Row index of entry to be set.column
- Column index of entry to be set.value
- the new value of the entry.MathIllegalArgumentException
- if the row or column index is not validpublic void addToEntry(int row, int column, double increment) throws MathIllegalArgumentException
this
matrix. Row and column indices start at 0.addToEntry
in interface RealMatrix
addToEntry
in class AbstractRealMatrix
row
- Row index of the entry to be modified.column
- Column index of the entry to be modified.increment
- value to add to the matrix entry.MathIllegalArgumentException
- if the row or column index is not valid.public void multiplyEntry(int row, int column, double factor) throws MathIllegalArgumentException
this
matrix by the
specified value. Row and column indices start at 0.multiplyEntry
in interface RealMatrix
multiplyEntry
in class AbstractRealMatrix
row
- Row index of the entry to be modified.column
- Column index of the entry to be modified.factor
- Multiplication factor for the matrix entry.MathIllegalArgumentException
- if the row or column index is not valid.public int getRowDimension()
getRowDimension
in interface AnyMatrix
getRowDimension
in interface RealLinearOperator
getRowDimension
in class AbstractRealMatrix
public int getColumnDimension()
getColumnDimension
in interface AnyMatrix
getColumnDimension
in interface RealLinearOperator
getColumnDimension
in class AbstractRealMatrix
public double[] operate(double[] v) throws MathIllegalArgumentException
v
.operate
in interface RealMatrix
operate
in class AbstractRealMatrix
v
- the vector to operate onthis * v
MathIllegalArgumentException
- if the length of v
does not
match the column dimension of this
.public double[] preMultiply(double[] v) throws MathIllegalArgumentException
v
.preMultiply
in interface RealMatrix
preMultiply
in class AbstractRealMatrix
v
- the row vector to premultiply byv * this
MathIllegalArgumentException
- if the length of v
does not
match the row dimension of this
.public RealMatrix getSubMatrix(int startRow, int endRow, int startColumn, int endColumn) throws MathIllegalArgumentException
getSubMatrix
in interface RealMatrix
getSubMatrix
in class AbstractRealMatrix
startRow
- Initial row indexendRow
- Final row index (inclusive)startColumn
- Initial column indexendColumn
- Final column index (inclusive)MathIllegalArgumentException
- if the indices are not valid.public double walkInRowOrder(RealMatrixChangingVisitor visitor)
Row order starts at upper left and iterating through all elements of a row from left to right before going to the leftmost element of the next row.
walkInRowOrder
in interface RealMatrix
walkInRowOrder
in class AbstractRealMatrix
visitor
- visitor used to process all matrix entriesRealMatrixChangingVisitor.end()
at the end
of the walkRealMatrix.walkInRowOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor, int, int, int, int)
public double walkInRowOrder(RealMatrixPreservingVisitor visitor)
Row order starts at upper left and iterating through all elements of a row from left to right before going to the leftmost element of the next row.
walkInRowOrder
in interface RealMatrix
walkInRowOrder
in class AbstractRealMatrix
visitor
- visitor used to process all matrix entriesRealMatrixPreservingVisitor.end()
at the end
of the walkRealMatrix.walkInRowOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor, int, int, int, int)
public double walkInRowOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) throws MathIllegalArgumentException
Row order starts at upper left and iterating through all elements of a row from left to right before going to the leftmost element of the next row.
walkInRowOrder
in interface RealMatrix
walkInRowOrder
in class AbstractRealMatrix
visitor
- visitor used to process all matrix entriesstartRow
- Initial row indexendRow
- Final row index (inclusive)startColumn
- Initial column indexendColumn
- Final column indexRealMatrixChangingVisitor.end()
at the end
of the walkMathIllegalArgumentException
- if the indices are not valid.RealMatrix.walkInRowOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor, int, int, int, int)
public double walkInRowOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) throws MathIllegalArgumentException
Row order starts at upper left and iterating through all elements of a row from left to right before going to the leftmost element of the next row.
walkInRowOrder
in interface RealMatrix
walkInRowOrder
in class AbstractRealMatrix
visitor
- visitor used to process all matrix entriesstartRow
- Initial row indexendRow
- Final row index (inclusive)startColumn
- Initial column indexendColumn
- Final column indexRealMatrixPreservingVisitor.end()
at the end
of the walkMathIllegalArgumentException
- if the indices are not valid.RealMatrix.walkInRowOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor, int, int, int, int)
public double walkInColumnOrder(RealMatrixChangingVisitor visitor)
Column order starts at upper left and iterating through all elements of a column from top to bottom before going to the topmost element of the next column.
walkInColumnOrder
in interface RealMatrix
walkInColumnOrder
in class AbstractRealMatrix
visitor
- visitor used to process all matrix entriesRealMatrixChangingVisitor.end()
at the end
of the walkRealMatrix.walkInRowOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor, int, int, int, int)
public double walkInColumnOrder(RealMatrixPreservingVisitor visitor)
Column order starts at upper left and iterating through all elements of a column from top to bottom before going to the topmost element of the next column.
walkInColumnOrder
in interface RealMatrix
walkInColumnOrder
in class AbstractRealMatrix
visitor
- visitor used to process all matrix entriesRealMatrixPreservingVisitor.end()
at the end
of the walkRealMatrix.walkInRowOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor, int, int, int, int)
public double walkInColumnOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) throws MathIllegalArgumentException
Column order starts at upper left and iterating through all elements of a column from top to bottom before going to the topmost element of the next column.
walkInColumnOrder
in interface RealMatrix
walkInColumnOrder
in class AbstractRealMatrix
visitor
- visitor used to process all matrix entriesstartRow
- Initial row indexendRow
- Final row index (inclusive)startColumn
- Initial column indexendColumn
- Final column indexRealMatrixChangingVisitor.end()
at the end
of the walkMathIllegalArgumentException
- if the indices are not valid.RealMatrix.walkInRowOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor, int, int, int, int)
public double walkInColumnOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) throws MathIllegalArgumentException
Column order starts at upper left and iterating through all elements of a column from top to bottom before going to the topmost element of the next column.
walkInColumnOrder
in interface RealMatrix
walkInColumnOrder
in class AbstractRealMatrix
visitor
- visitor used to process all matrix entriesstartRow
- Initial row indexendRow
- Final row index (inclusive)startColumn
- Initial column indexendColumn
- Final column indexRealMatrixPreservingVisitor.end()
at the end
of the walkMathIllegalArgumentException
- if the indices are not valid.RealMatrix.walkInRowOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInColumnOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor)
,
RealMatrix.walkInOptimizedOrder(RealMatrixChangingVisitor, int, int, int, int)
,
RealMatrix.walkInOptimizedOrder(RealMatrixPreservingVisitor, int, int, int, int)
public double[] getRow(int row) throws MathIllegalArgumentException
getRow
in interface RealMatrix
getRow
in class AbstractRealMatrix
row
- Row to be fetched.MathIllegalArgumentException
- if the specified row index is not valid.public void setRow(int row, double[] array) throws MathIllegalArgumentException
row
of this
matrix to the entries
of the specified array
. Row indices start at 0.setRow
in interface RealMatrix
setRow
in class AbstractRealMatrix
row
- Row to be set.array
- Row matrix to be copied (must have the same number of
columns as the instance)MathIllegalArgumentException
- if the specified row index is invalid.public RealMatrix kroneckerProduct(RealMatrix b)
b
- matrix to post Kronecker-multiply bypublic RealMatrix stack()
public RealMatrix unstackSquare()
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