Module platform

Package org.jfree.data.xy

Class MatrixSeries

java.lang.Object

org.jfree.data.general.Series

org.jfree.data.xy.MatrixSeries

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

NormalizedMatrixSeries

public class MatrixSeries
extends Series
implements Serializable

Represents a dense matrix M[i,j] where each Mij item of the matrix has a value (default is 0).

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected double[][]	data	Series matrix values

Constructor Summary

Constructors

Constructor	Description
MatrixSeries(String name, int rows, int columns)	Constructs a new matrix series.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Tests this object instance for equality with an arbitrary object.
double	get(int i, int j)	Returns the value of the specified item in this matrix series.
int	getColumnsCount()	Returns the number of columns in this matrix series.
Number	getItem(int itemIndex)	Return the matrix item at the specified index.
int	getItemColumn(int itemIndex)	Returns the column of the specified item.
int	getItemCount()	Returns the number of items in the series.
int	getItemRow(int itemIndex)	Returns the row of the specified item.
int	getRowCount()	Returns the number of rows in this matrix series.
void	update(int i, int j, double mij)	Updates the value of the specified item in this matrix series.
void	zeroAll()	Sets all matrix values to zero and sends a SeriesChangeEvent to all registered listeners.

Methods inherited from class org.jfree.data.general.Series

addChangeListener, addPropertyChangeListener, addVetoableChangeListener, clone, firePropertyChange, fireSeriesChanged, fireVetoableChange, getDescription, getKey, getNotify, hashCode, isEmpty, notifyListeners, removeChangeListener, removePropertyChangeListener, removeVetoableChangeListener, setDescription, setKey, setNotify

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

data

protected double[][] data

Series matrix values

Constructor Details

MatrixSeries

public MatrixSeries(String name,
 int rows,
 int columns)

Constructs a new matrix series.

By default, all matrix items are initialzed to 0.

Parameters:

name - series name (null not permitted).

rows - the number of rows.

columns - the number of columns.

Method Details

getColumnsCount

public int getColumnsCount()

Returns the number of columns in this matrix series.

Returns:

The number of columns in this matrix series.

getItem

public Number getItem(int itemIndex)

Return the matrix item at the specified index. Note that this method creates a new double instance every time it is called.

Parameters:

itemIndex - item index.

Returns:

The matrix item at the specified index.

See Also:

• get(int, int)

getItemColumn

public int getItemColumn(int itemIndex)

Returns the column of the specified item.

Parameters:

itemIndex - the index of the item.

Returns:

The column of the specified item.

getItemCount

public int getItemCount()

Returns the number of items in the series.

Specified by:

getItemCount in class Series

Returns:

The item count.

getItemRow

public int getItemRow(int itemIndex)

Returns the row of the specified item.

Parameters:

itemIndex - the index of the item.

Returns:

The row of the specified item.

getRowCount

public int getRowCount()

Returns the number of rows in this matrix series.

Returns:

The number of rows in this matrix series.

get

public double get(int i,
 int j)

Returns the value of the specified item in this matrix series.

Parameters:

i - the row of the item.

j - the column of the item.

Returns:

The value of the specified item in this matrix series.

See Also:

• getItem(int)
• update(int, int, double)

update

public void update(int i,
 int j,
 double mij)

Updates the value of the specified item in this matrix series.

Parameters:

i - the row of the item.

j - the column of the item.

mij - the new value for the item.

See Also:

• get(int, int)

zeroAll

public void zeroAll()

Sets all matrix values to zero and sends a SeriesChangeEvent to all registered listeners.

equals

public boolean equals(Object obj)

Tests this object instance for equality with an arbitrary object.

Overrides:

equals in class Series

Parameters:

obj - the object (null permitted).

Returns:

A boolean.