Class Array2DRowRealMatrix
- java.lang.Object
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- org.apache.commons.math4.legacy.linear.RealLinearOperator
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- org.apache.commons.math4.legacy.linear.AbstractRealMatrix
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- org.apache.commons.math4.legacy.linear.Array2DRowRealMatrix
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- All Implemented Interfaces:
Serializable,AnyMatrix,RealMatrix
public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializable
Implementation ofRealMatrixusing adouble[][]array to store entries.- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description Array2DRowRealMatrix()Creates a matrix with no data.Array2DRowRealMatrix(double[] v)Create a new (column) RealMatrix usingvas the data for the unique column of the created matrix.Array2DRowRealMatrix(double[][] d)Create a newRealMatrixusing 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.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Array2DRowRealMatrixadd(Array2DRowRealMatrix m)Compute the sum ofthisandm.voidaddToEntry(int row, int column, double increment)Adds (in place) the specified value to the specified entry ofthismatrix.RealMatrixcopy()Returns a (deep) copy of this.RealMatrixcreateMatrix(int rowDimension, int columnDimension)Create a new RealMatrix of the same type as the instance with the supplied row and column dimensions.intgetColumnDimension()Returns the dimension of the domain of this operator.double[][]getData()Returns matrix entries as a two-dimensional array.double[][]getDataRef()Get a reference to the underlying data array.doublegetEntry(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.intgetRowDimension()Returns the dimension of the codomain of this operator.RealMatrixgetSubMatrix(int startRow, int endRow, int startColumn, int endColumn)Gets a submatrix.Array2DRowRealMatrixmultiply(Array2DRowRealMatrix m)Returns the result of postmultiplyingthisbym.voidmultiplyEntry(int row, int column, double factor)Multiplies (in place) the specified entry ofthismatrix by the specified value.double[]operate(double[] v)Returns the result of multiplying this by the vectorv.double[]preMultiply(double[] v)Returns the (row) vector result of premultiplying this by the vectorv.voidsetEntry(int row, int column, double value)Set the entry in the specified row and column.voidsetRow(int row, double[] array)Sets the specifiedrowofthismatrix to the entries of the specifiedarray.voidsetSubMatrix(double[][] subMatrix, int row, int column)Replace the submatrix starting atrow, columnusing data in the inputsubMatrixarray.Array2DRowRealMatrixsubtract(Array2DRowRealMatrix m)Returnsthisminusm.doublewalkInColumnOrder(RealMatrixChangingVisitor visitor)Visit (and possibly change) all matrix entries in column order.doublewalkInColumnOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn)Visit (and possibly change) some matrix entries in column order.doublewalkInColumnOrder(RealMatrixPreservingVisitor visitor)Visit (but don't change) all matrix entries in column order.doublewalkInColumnOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn)Visit (but don't change) some matrix entries in column order.doublewalkInRowOrder(RealMatrixChangingVisitor visitor)Visit (and possibly change) all matrix entries in row order.doublewalkInRowOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn)Visit (and possibly change) some matrix entries in row order.doublewalkInRowOrder(RealMatrixPreservingVisitor visitor)Visit (but don't change) all matrix entries in row order.doublewalkInRowOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn)Visit (but don't change) some matrix entries in row order.-
Methods inherited from class org.apache.commons.math4.legacy.linear.AbstractRealMatrix
add, copySubMatrix, copySubMatrix, equals, getColumn, getColumnMatrix, getColumnVector, getFrobeniusNorm, getNorm, getRowMatrix, getRowVector, getSubMatrix, getTrace, hashCode, multiply, operate, power, preMultiply, preMultiply, scalarAdd, scalarMultiply, setColumn, setColumnMatrix, setColumnVector, setRowMatrix, setRowVector, subtract, toString, transpose, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder
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Methods inherited from class org.apache.commons.math4.legacy.linear.RealLinearOperator
isTransposable, operateTranspose
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.apache.commons.math4.legacy.linear.AnyMatrix
canAdd, canMultiply, checkAdd, checkMultiply, isSquare
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Constructor Detail
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Array2DRowRealMatrix
public Array2DRowRealMatrix()
Creates a matrix with no data.
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Array2DRowRealMatrix
public Array2DRowRealMatrix(int rowDimension, int columnDimension) throws NotStrictlyPositiveException
Create a new RealMatrix with the supplied row and column dimensions.- Parameters:
rowDimension- Number of rows in the new matrix.columnDimension- Number of columns in the new matrix.- Throws:
NotStrictlyPositiveException- if the row or column dimension is not positive.
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Array2DRowRealMatrix
public Array2DRowRealMatrix(double[][] d) throws DimensionMismatchException, NoDataException, NullArgumentException
Create a newRealMatrixusing 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 totrue.- Parameters:
d- Data for the new matrix.- Throws:
DimensionMismatchException- ifdis not rectangular.NoDataException- ifdrow or column dimension is zero.NullArgumentException- ifdisnull.- See Also:
Array2DRowRealMatrix(double[][], boolean)
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Array2DRowRealMatrix
public Array2DRowRealMatrix(double[][] d, boolean copyArray) throws DimensionMismatchException, NoDataException, NullArgumentException
Create a new RealMatrix using the input array as the underlying data array. If an array is built specially in order to be embedded in a RealMatrix and not used directly, thecopyArraymay be set tofalse. This will prevent the copying and improve performance as no new array will be built and no data will be copied.- Parameters:
d- Data for new matrix.copyArray- iftrue, the input array will be copied, otherwise it will be referenced.- Throws:
DimensionMismatchException- ifdis not rectangular.NoDataException- ifdrow or column dimension is zero.NullArgumentException- ifdisnull.- See Also:
Array2DRowRealMatrix(double[][])
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Array2DRowRealMatrix
public Array2DRowRealMatrix(double[] v)
Create a new (column) RealMatrix usingvas the data for the unique column of the created matrix. The input array is copied.- Parameters:
v- Column vector holding data for new matrix.
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Method Detail
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createMatrix
public RealMatrix createMatrix(int rowDimension, int columnDimension) throws NotStrictlyPositiveException
Create a new RealMatrix of the same type as the instance with the supplied row and column dimensions.- Specified by:
createMatrixin interfaceRealMatrix- Specified by:
createMatrixin classAbstractRealMatrix- Parameters:
rowDimension- the number of rows in the new matrixcolumnDimension- the number of columns in the new matrix- Returns:
- a new matrix of the same type as the instance
- Throws:
NotStrictlyPositiveException- if row or column dimension is not positive.
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copy
public RealMatrix copy()
Returns a (deep) copy of this.- Specified by:
copyin interfaceRealMatrix- Specified by:
copyin classAbstractRealMatrix- Returns:
- matrix copy
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add
public Array2DRowRealMatrix add(Array2DRowRealMatrix m) throws MatrixDimensionMismatchException
Compute the sum ofthisandm.- Parameters:
m- Matrix to be added.- Returns:
this + m.- Throws:
MatrixDimensionMismatchException- ifmis not the same size asthis.
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subtract
public Array2DRowRealMatrix subtract(Array2DRowRealMatrix m) throws MatrixDimensionMismatchException
Returnsthisminusm.- Parameters:
m- Matrix to be subtracted.- Returns:
this - m- Throws:
MatrixDimensionMismatchException- ifmis not the same size asthis.
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multiply
public Array2DRowRealMatrix multiply(Array2DRowRealMatrix m) throws DimensionMismatchException
Returns the result of postmultiplyingthisbym.- Parameters:
m- matrix to postmultiply by- Returns:
this * m- Throws:
DimensionMismatchException- ifcolumnDimension(this) != rowDimension(m)
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getData
public double[][] getData()
Returns matrix entries as a two-dimensional array.- Specified by:
getDatain interfaceRealMatrix- Overrides:
getDatain classAbstractRealMatrix- Returns:
- 2-dimensional array of entries
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getDataRef
public double[][] getDataRef()
Get a reference to the underlying data array.- Returns:
- 2-dimensional array of entries.
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setSubMatrix
public void setSubMatrix(double[][] subMatrix, int row, int column) throws NoDataException, OutOfRangeException, DimensionMismatchException, NullArgumentException
Replace the submatrix starting atrow, columnusing data in the inputsubMatrixarray. Indexes are 0-based.Example:
Starting with1 2 3 4 5 6 7 8 9 0 1 2
andsubMatrix = {{3, 4} {5,6}}, invokingsetSubMatrix(subMatrix,1,1))will result in1 2 3 4 5 3 4 8 9 5 6 2
- Specified by:
setSubMatrixin interfaceRealMatrix- Overrides:
setSubMatrixin classAbstractRealMatrix- Parameters:
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 replaced- Throws:
NoDataException- ifsubMatrixis empty.OutOfRangeException- ifsubMatrixdoes not fit into this matrix from element in(row, column).DimensionMismatchException- ifsubMatrixis not rectangular (not all rows have the same length) or empty.NullArgumentException- ifsubMatrixisnull.
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getEntry
public double getEntry(int row, int column) throws OutOfRangeException
Get the entry in the specified row and column. Row and column indices start at 0.- Specified by:
getEntryin interfaceRealMatrix- Specified by:
getEntryin classAbstractRealMatrix- Parameters:
row- Row index of entry to be fetched.column- Column index of entry to be fetched.- Returns:
- the matrix entry at
(row, column). - Throws:
OutOfRangeException- if the row or column index is not valid.
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setEntry
public void setEntry(int row, int column, double value) throws OutOfRangeException
Set the entry in the specified row and column. Row and column indices start at 0.- Specified by:
setEntryin interfaceRealMatrix- Specified by:
setEntryin classAbstractRealMatrix- Parameters:
row- Row index of entry to be set.column- Column index of entry to be set.value- the new value of the entry.- Throws:
OutOfRangeException- if the row or column index is not valid
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addToEntry
public void addToEntry(int row, int column, double increment) throws OutOfRangeException
Adds (in place) the specified value to the specified entry ofthismatrix. Row and column indices start at 0.- Specified by:
addToEntryin interfaceRealMatrix- Overrides:
addToEntryin classAbstractRealMatrix- Parameters:
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.- Throws:
OutOfRangeException- if the row or column index is not valid.
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multiplyEntry
public void multiplyEntry(int row, int column, double factor) throws OutOfRangeException
Multiplies (in place) the specified entry ofthismatrix by the specified value. Row and column indices start at 0.- Specified by:
multiplyEntryin interfaceRealMatrix- Overrides:
multiplyEntryin classAbstractRealMatrix- Parameters:
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.- Throws:
OutOfRangeException- if the row or column index is not valid.
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getRowDimension
public int getRowDimension()
Returns the dimension of the codomain of this operator.- Specified by:
getRowDimensionin interfaceAnyMatrix- Specified by:
getRowDimensionin classRealLinearOperator- Returns:
- the number of rows of the underlying matrix
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getColumnDimension
public int getColumnDimension()
Returns the dimension of the domain of this operator.- Specified by:
getColumnDimensionin interfaceAnyMatrix- Specified by:
getColumnDimensionin classRealLinearOperator- Returns:
- the number of columns of the underlying matrix
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operate
public double[] operate(double[] v) throws DimensionMismatchException
Returns the result of multiplying this by the vectorv.- Specified by:
operatein interfaceRealMatrix- Overrides:
operatein classAbstractRealMatrix- Parameters:
v- the vector to operate on- Returns:
this * v- Throws:
DimensionMismatchException- if the length ofvdoes not match the column dimension ofthis.
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preMultiply
public double[] preMultiply(double[] v) throws DimensionMismatchException
Returns the (row) vector result of premultiplying this by the vectorv.- Specified by:
preMultiplyin interfaceRealMatrix- Overrides:
preMultiplyin classAbstractRealMatrix- Parameters:
v- the row vector to premultiply by- Returns:
v * this- Throws:
DimensionMismatchException- if the length ofvdoes not match the row dimension ofthis.
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getSubMatrix
public RealMatrix getSubMatrix(int startRow, int endRow, int startColumn, int endColumn) throws OutOfRangeException, NumberIsTooSmallException
Gets a submatrix. Rows and columns are indicated counting from 0 to n-1.- Specified by:
getSubMatrixin interfaceRealMatrix- Overrides:
getSubMatrixin classAbstractRealMatrix- Parameters:
startRow- Initial row indexendRow- Final row index (inclusive)startColumn- Initial column indexendColumn- Final column index (inclusive)- Returns:
- The subMatrix containing the data of the specified rows and columns.
- Throws:
OutOfRangeException- if the indices are not valid.NumberIsTooSmallException- ifendRow < startRoworendColumn < startColumn.
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walkInRowOrder
public double walkInRowOrder(RealMatrixChangingVisitor visitor)
Visit (and possibly change) all matrix entries in row order.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.
- Specified by:
walkInRowOrderin interfaceRealMatrix- Overrides:
walkInRowOrderin classAbstractRealMatrix- Parameters:
visitor- visitor used to process all matrix entries- Returns:
- the value returned by
RealMatrixChangingVisitor.end()at the end of the walk - See Also:
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.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)
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walkInRowOrder
public double walkInRowOrder(RealMatrixPreservingVisitor visitor)
Visit (but don't change) all matrix entries in row order.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.
- Specified by:
walkInRowOrderin interfaceRealMatrix- Overrides:
walkInRowOrderin classAbstractRealMatrix- Parameters:
visitor- visitor used to process all matrix entries- Returns:
- the value returned by
RealMatrixPreservingVisitor.end()at the end of the walk - See Also:
RealMatrix.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)
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walkInRowOrder
public double walkInRowOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) throws OutOfRangeException, NumberIsTooSmallException
Visit (and possibly change) some matrix entries in row order.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.
- Specified by:
walkInRowOrderin interfaceRealMatrix- Overrides:
walkInRowOrderin classAbstractRealMatrix- Parameters:
visitor- visitor used to process all matrix entriesstartRow- Initial row indexendRow- Final row index (inclusive)startColumn- Initial column indexendColumn- Final column index- Returns:
- the value returned by
RealMatrixChangingVisitor.end()at the end of the walk - Throws:
OutOfRangeException- if the indices are not valid.NumberIsTooSmallException- ifendRow < startRoworendColumn < startColumn.- See Also:
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)
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walkInRowOrder
public double walkInRowOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) throws OutOfRangeException, NumberIsTooSmallException
Visit (but don't change) some matrix entries in row order.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.
- Specified by:
walkInRowOrderin interfaceRealMatrix- Overrides:
walkInRowOrderin classAbstractRealMatrix- Parameters:
visitor- visitor used to process all matrix entriesstartRow- Initial row indexendRow- Final row index (inclusive)startColumn- Initial column indexendColumn- Final column index- Returns:
- the value returned by
RealMatrixPreservingVisitor.end()at the end of the walk - Throws:
OutOfRangeException- if the indices are not valid.NumberIsTooSmallException- ifendRow < startRoworendColumn < startColumn.- See Also:
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)
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walkInColumnOrder
public double walkInColumnOrder(RealMatrixChangingVisitor visitor)
Visit (and possibly change) all matrix entries in column order.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.
- Specified by:
walkInColumnOrderin interfaceRealMatrix- Overrides:
walkInColumnOrderin classAbstractRealMatrix- Parameters:
visitor- visitor used to process all matrix entries- Returns:
- the value returned by
RealMatrixChangingVisitor.end()at the end of the walk - See Also:
RealMatrix.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)
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walkInColumnOrder
public double walkInColumnOrder(RealMatrixPreservingVisitor visitor)
Visit (but don't change) all matrix entries in column order.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.
- Specified by:
walkInColumnOrderin interfaceRealMatrix- Overrides:
walkInColumnOrderin classAbstractRealMatrix- Parameters:
visitor- visitor used to process all matrix entries- Returns:
- the value returned by
RealMatrixPreservingVisitor.end()at the end of the walk - See Also:
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(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)
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walkInColumnOrder
public double walkInColumnOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) throws OutOfRangeException, NumberIsTooSmallException
Visit (and possibly change) some matrix entries in column order.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.
- Specified by:
walkInColumnOrderin interfaceRealMatrix- Overrides:
walkInColumnOrderin classAbstractRealMatrix- Parameters:
visitor- visitor used to process all matrix entriesstartRow- Initial row indexendRow- Final row index (inclusive)startColumn- Initial column indexendColumn- Final column index- Returns:
- the value returned by
RealMatrixChangingVisitor.end()at the end of the walk - Throws:
OutOfRangeException- if the indices are not valid.NumberIsTooSmallException- ifendRow < startRoworendColumn < startColumn.- See Also:
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)
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walkInColumnOrder
public double walkInColumnOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn) throws OutOfRangeException, NumberIsTooSmallException
Visit (but don't change) some matrix entries in column order.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.
- Specified by:
walkInColumnOrderin interfaceRealMatrix- Overrides:
walkInColumnOrderin classAbstractRealMatrix- Parameters:
visitor- visitor used to process all matrix entriesstartRow- Initial row indexendRow- Final row index (inclusive)startColumn- Initial column indexendColumn- Final column index- Returns:
- the value returned by
RealMatrixPreservingVisitor.end()at the end of the walk - Throws:
OutOfRangeException- if the indices are not valid.NumberIsTooSmallException- ifendRow < startRoworendColumn < startColumn.- See Also:
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)
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getRow
public double[] getRow(int row) throws OutOfRangeException
Get the entries at the given row index. Row indices start at 0.- Specified by:
getRowin interfaceRealMatrix- Overrides:
getRowin classAbstractRealMatrix- Parameters:
row- Row to be fetched.- Returns:
- the array of entries in the row.
- Throws:
OutOfRangeException- if the specified row index is not valid.
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setRow
public void setRow(int row, double[] array) throws OutOfRangeException, MatrixDimensionMismatchException
Sets the specifiedrowofthismatrix to the entries of the specifiedarray. Row indices start at 0.- Specified by:
setRowin interfaceRealMatrix- Overrides:
setRowin classAbstractRealMatrix- Parameters:
row- Row to be set.array- Row matrix to be copied (must have the same number of columns as the instance)- Throws:
OutOfRangeException- if the specified row index is invalid.MatrixDimensionMismatchException- if thearraylength does not match the column dimension ofthismatrix.
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