XYDataset documentation

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DETAIL: FIELD CONSTR ENUM METHOD ELEMENT

org.jfree.data.xy

Interface XYDataset

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public interface XYDataset
extends SeriesDataset

An interface through which data in the form of (x, y) items can be accessed.

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Method Summary
DomainOrder	getDomainOrder() Returns the order of the domain (or X) values returned by the dataset.
int	getItemCount( int series ) Returns the number of items in a series.
Number	getX( int series, int item ) Returns the x-value for an item within a series.
double	getXValue( int series, int item ) Returns the x-value (as a double primitive) for an item within a series.
Number	getY( int series, int item ) Returns the y-value for an item within a series.
double	getYValue( int series, int item ) Returns the y-value (as a double primitive) for an item within a series.

Methods inherited from org.jfree.data.generalDataset
addChangeListener (DatasetChangeListener) getGroup () removeChangeListener (DatasetChangeListener) setGroup (DatasetGroup)

Methods inherited from org.jfree.data.generalSeriesDataset
getSeriesCount () getSeriesKey (int) indexOf (Comparable)

Method Detail

getDomainOrder

public DomainOrder getDomainOrder ( )

Returns the order of the domain (or X) values returned by the dataset.

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getItemCount

public int getItemCount ( int series )

Returns the number of items in a series.

Parameters

Type	Name	Description
int	series	the series index (zero-based).

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getX

public Number getX ( int series, int item )

Returns the x-value for an item within a series. The x-values may or may not be returned in ascending order, that is up to the class implementing the interface.

Parameters

Type	Name	Description
int	series	the series index (zero-based).
int	item	the item index (zero-based).

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getXValue

public double getXValue ( int series, int item )

Returns the x-value (as a double primitive) for an item within a series.

Parameters

Type	Name	Description
int	series	the series index (zero-based).
int	item	the item index (zero-based).

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getY

public Number getY ( int series, int item )

Returns the y-value for an item within a series.

Parameters

Type	Name	Description
int	series	the series index (zero-based).
int	item	the item index (zero-based).

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getYValue

public double getYValue ( int series, int item )

Returns the y-value (as a double primitive) for an item within a series.

Parameters

Type	Name	Description
int	series	the series index (zero-based).
int	item	the item index (zero-based).

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