org.apache.commons.math3.linear.Array2DRowRealMatrix

All Implemented Interfaces:: Serializable, AnyMatrix, RealMatrix

public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializable

Implementation of RealMatrix using a double[][] array to store entries.

See Also:

Constructor Summary

Constructors

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.
Method Summary

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.

int

getRowDimension()

Returns the number of rows of this 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.

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

setSubMatrix(double[][] subMatrix, int row, int column)

Replace the submatrix starting at row, column using data in the input subMatrix array.

Array2DRowRealMatrix

subtract(Array2DRowRealMatrix m)

Returns this minus m.

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.

Methods inherited from class org.apache.commons.math3.linear.AbstractRealMatrix
add, copySubMatrix, copySubMatrix, equals, getColumn, getColumnMatrix, getColumnVector, getFrobeniusNorm, getNorm, getRow, getRowMatrix, getRowVector, getSubMatrix, getSubMatrix, getTrace, hashCode, isSquare, multiply, operate, power, preMultiply, preMultiply, scalarAdd, scalarMultiply, setColumn, setColumnMatrix, setColumnVector, setRow, setRowMatrix, setRowVector, subtract, toString, transpose, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder

Methods inherited from class org.apache.commons.math3.linear.RealLinearOperator
isTransposable, operateTranspose

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details
- Array2DRowRealMatrix
  
  public Array2DRowRealMatrix()
  
  Creates a matrix with no data
- 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.
- Array2DRowRealMatrix
  
  public Array2DRowRealMatrix(double[][] d) throws DimensionMismatchException, NoDataException, NullArgumentException
  
  Create a new 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.
  Parameters:
  
  d - Data for the new matrix.
  
  Throws:
  
  DimensionMismatchException - if d is not rectangular.
  
  NoDataException - if d row or column dimension is zero.
  
  NullArgumentException - if d is null.
  
  See Also:
  
  Array2DRowRealMatrix(double[][], boolean)
- 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, the 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.
  Parameters:
  
  d - Data for new matrix.
  
  copyArray - if true, the input array will be copied, otherwise it will be referenced.
  
  Throws:
  
  DimensionMismatchException - if d is not rectangular.
  
  NoDataException - if d row or column dimension is zero.
  
  NullArgumentException - if d is null.
  
  See Also:
  
  Array2DRowRealMatrix(double[][])
- Array2DRowRealMatrix
  
  public Array2DRowRealMatrix(double[] v)
  
  Create a new (column) RealMatrix using v as the data for the unique column of the created matrix. The input array is copied.
  
  Parameters:
  
  v - Column vector holding data for new matrix.
Method Details
- 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:
  
  createMatrix in interface RealMatrix
  
  Specified by:
  
  createMatrix in class AbstractRealMatrix
  
  Parameters:
  
  rowDimension - the number of rows in the new matrix
  
  columnDimension - 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.
- copy
  
  public RealMatrix copy()
  
  Returns a (deep) copy of this.
  
  Specified by:
  
  copy in interface RealMatrix
  
  Specified by:
  
  copy in class AbstractRealMatrix
  
  Returns:
  
  matrix copy
- add
  
  public Array2DRowRealMatrix add(Array2DRowRealMatrix m) throws MatrixDimensionMismatchException
  
  Compute the sum of this and m.
  
  Parameters:
  
  m - Matrix to be added.
  
  Returns:
  
  this + m.
  
  Throws:
  
  MatrixDimensionMismatchException - if m is not the same size as this.
- subtract
  
  public Array2DRowRealMatrix subtract(Array2DRowRealMatrix m) throws MatrixDimensionMismatchException
  
  Returns this minus m.
  
  Parameters:
  
  m - Matrix to be subtracted.
  
  Returns:
  
  this - m
  
  Throws:
  
  MatrixDimensionMismatchException - if m is not the same size as this.
- multiply
  
  public Array2DRowRealMatrix multiply(Array2DRowRealMatrix m) throws DimensionMismatchException
  
  Returns the result of postmultiplying this by m.
  
  Parameters:
  
  m - matrix to postmultiply by
  
  Returns:
  
  this * m
  
  Throws:
  
  DimensionMismatchException - if columnDimension(this) != rowDimension(m)
- getData
  
  public double[][] getData()
  
  Returns matrix entries as a two-dimensional array.
  
  Specified by:
  
  getData in interface RealMatrix
  
  Overrides:
  
  getData in class AbstractRealMatrix
  
  Returns:
  
  2-dimensional array of entries
- getDataRef
  
  public double[][] getDataRef()
  
  Get a reference to the underlying data array.
  
  Returns:
  
  2-dimensional array of entries.
- setSubMatrix
  
  public void setSubMatrix(double[][] subMatrix, int row, int column) throws NoDataException, OutOfRangeException, DimensionMismatchException, NullArgumentException
  Replace the submatrix starting at 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 2
  and 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
  Specified by:
  
  setSubMatrix in interface RealMatrix
  
  Overrides:
  
  setSubMatrix in class AbstractRealMatrix
  
  Parameters:
  
  subMatrix - array containing the submatrix replacement data
  
  row - row coordinate of the top, left element to be replaced
  
  column - column coordinate of the top, left element to be replaced
  
  Throws:
  
  NoDataException - if subMatrix is empty.
  
  OutOfRangeException - if subMatrix does not fit into this matrix from element in (row, column).
  
  DimensionMismatchException - if subMatrix is not rectangular (not all rows have the same length) or empty.
  
  NullArgumentException - if subMatrix is null.
- 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:
  
  getEntry in interface RealMatrix
  
  Specified by:
  
  getEntry in class AbstractRealMatrix
  
  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.
- 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:
  
  setEntry in interface RealMatrix
  
  Specified by:
  
  setEntry in class AbstractRealMatrix
  
  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
- addToEntry
  
  public void addToEntry(int row, int column, double increment) throws OutOfRangeException
  
  Adds (in place) the specified value to the specified entry of this matrix. Row and column indices start at 0.
  
  Specified by:
  
  addToEntry in interface RealMatrix
  
  Overrides:
  
  addToEntry in class AbstractRealMatrix
  
  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.
- multiplyEntry
  
  public void multiplyEntry(int row, int column, double factor) throws OutOfRangeException
  
  Multiplies (in place) the specified entry of this matrix by the specified value. Row and column indices start at 0.
  
  Specified by:
  
  multiplyEntry in interface RealMatrix
  
  Overrides:
  
  multiplyEntry in class AbstractRealMatrix
  
  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.
- getRowDimension
  
  public int getRowDimension()
  
  Returns the number of rows of this matrix.
  
  Specified by:
  
  getRowDimension in interface AnyMatrix
  
  Specified by:
  
  getRowDimension in class AbstractRealMatrix
  
  Returns:
  
  the number of rows.
- getColumnDimension
  
  public int getColumnDimension()
  
  Returns the number of columns of this matrix.
  
  Specified by:
  
  getColumnDimension in interface AnyMatrix
  
  Specified by:
  
  getColumnDimension in class AbstractRealMatrix
  
  Returns:
  
  the number of columns.
- operate
  
  public double[] operate(double[] v) throws DimensionMismatchException
  
  Returns the result of multiplying this by the vector v.
  
  Specified by:
  
  operate in interface RealMatrix
  
  Overrides:
  
  operate in class AbstractRealMatrix
  
  Parameters:
  
  v - the vector to operate on
  
  Returns:
  
  this * v
  
  Throws:
  
  DimensionMismatchException - if the length of v does not match the column dimension of this.
- preMultiply
  
  public double[] preMultiply(double[] v) throws DimensionMismatchException
  
  Returns the (row) vector result of premultiplying this by the vector v.
  
  Specified by:
  
  preMultiply in interface RealMatrix
  
  Overrides:
  
  preMultiply in class AbstractRealMatrix
  
  Parameters:
  
  v - the row vector to premultiply by
  
  Returns:
  
  v * this
  
  Throws:
  
  DimensionMismatchException - if the length of v does not match the row dimension of this.
- 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:
  
  walkInRowOrder in interface RealMatrix
  
  Overrides:
  
  walkInRowOrder in class AbstractRealMatrix
  
  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)
- 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:
  
  walkInRowOrder in interface RealMatrix
  
  Overrides:
  
  walkInRowOrder in class AbstractRealMatrix
  
  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)
- 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:
  
  walkInRowOrder in interface RealMatrix
  
  Overrides:
  
  walkInRowOrder in class AbstractRealMatrix
  
  Parameters:
  
  visitor - visitor used to process all matrix entries
  
  startRow - Initial row index
  
  endRow - Final row index (inclusive)
  
  startColumn - Initial column index
  
  endColumn - 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 - if endRow < startRow or endColumn < 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)
- 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:
  
  walkInRowOrder in interface RealMatrix
  
  Overrides:
  
  walkInRowOrder in class AbstractRealMatrix
  
  Parameters:
  
  visitor - visitor used to process all matrix entries
  
  startRow - Initial row index
  
  endRow - Final row index (inclusive)
  
  startColumn - Initial column index
  
  endColumn - 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 - if endRow < startRow or endColumn < 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)
- 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:
  
  walkInColumnOrder in interface RealMatrix
  
  Overrides:
  
  walkInColumnOrder in class AbstractRealMatrix
  
  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)
- 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:
  
  walkInColumnOrder in interface RealMatrix
  
  Overrides:
  
  walkInColumnOrder in class AbstractRealMatrix
  
  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)
- 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:
  
  walkInColumnOrder in interface RealMatrix
  
  Overrides:
  
  walkInColumnOrder in class AbstractRealMatrix
  
  Parameters:
  
  visitor - visitor used to process all matrix entries
  
  startRow - Initial row index
  
  endRow - Final row index (inclusive)
  
  startColumn - Initial column index
  
  endColumn - 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 - if endRow < startRow or endColumn < 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)
- 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:
  
  walkInColumnOrder in interface RealMatrix
  
  Overrides:
  
  walkInColumnOrder in class AbstractRealMatrix
  
  Parameters:
  
  visitor - visitor used to process all matrix entries
  
  startRow - Initial row index
  
  endRow - Final row index (inclusive)
  
  startColumn - Initial column index
  
  endColumn - 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 - if endRow < startRow or endColumn < 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)

Class Array2DRowRealMatrix

Constructor Summary

Method Summary

Methods inherited from class org.apache.commons.math3.linear.AbstractRealMatrix

Methods inherited from class org.apache.commons.math3.linear.RealLinearOperator

Methods inherited from class java.lang.Object

Constructor Details

Array2DRowRealMatrix

Array2DRowRealMatrix

Array2DRowRealMatrix

Array2DRowRealMatrix

Array2DRowRealMatrix

Method Details

createMatrix

copy

add

subtract

multiply

getData

getDataRef

setSubMatrix

getEntry

setEntry

addToEntry

multiplyEntry

getRowDimension

getColumnDimension

operate

preMultiply

walkInRowOrder

walkInRowOrder

walkInRowOrder

walkInRowOrder

walkInColumnOrder

walkInColumnOrder

walkInColumnOrder

walkInColumnOrder