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XYSeries Class
- XYSeries Class comes under the org.jfree.data.xy package of the JFreeChart library.
- This class represents a sequence of zero or more data items in the form (x, y).
- By default, items in the series will be arranged into ascending order by x-value, and duplicate x-values are permitted. Both the sorting and duplicate defaults can be changed in the constructor.
Constructor:
| constructor | Description |
|---|---|
| XYSeries(Comparable key) | It creates a new empty series. |
| XYSeries(Comparable key, boolean autoSort) | It constructs a new empty series, with the auto-sort flag set as requested, and duplicate values allowed. |
| XYSeries(Comparable key, boolean autoSort, boolean allowDuplicateXValues) | It constructs a new xy-series that contains no data. |
Method Summary
| Method | Description |
|---|---|
| add(double x, double y) | This method adds a data item to the series and sends a SeriesChangeEvent to all registered listeners. |
| add(double x, Number y) | This method adds a new data item to the series (in the correct position if the autoSort flag is set for the series) and sends a SeriesChangeEvent to all registered listeners. |
| add(XYDataItem item) | This method adds a data item to the series and sends a SeriesChangeEvent to all registered listeners. |
| clear( ) | This method removes all data items from the series and sends a SeriesChangeEvent to all registered listeners. |
| createCopy(int start, int end) | This method creates a new series by copying a subset of the data in this time series. |
| delete(int start, int end) | This method deletes a range of items from the series and sends a SeriesChangeEvent to all registered listeners. |
| getDataItem(int index) | This method return the data item with the specified index. |
| getItemCount( ) | This method returns the number of items in the series. |
| getItems( ) | This method returns the list of data items for the series (the list contains XYDataItem objects and is unmodifiable). |
| getMaxX( ) | This method returns the largest x-value in the series, ignoring any Double.NaN values. |
| getMaxY( ) | This method returns the largest y-value in the series, ignoring any Double.NaN values. |
| getMinX( ) | This method returns the smallest x-value in the series, ignoring any Double.NaN values. |
| getMinY( ) | This method returns the smallest y-value in the series, ignoring any null and Double.NaN values. |
| remove(Number x) | This method removes an item with the specified x-value and sends a SeriesChangeEvent to all registered listeners. |
| update(Number x, Number y) | This method updates an item in the series. |
Next TopicTimeSeries Class