Package ucar.unidata.idv.control.chart

Class MyHistogramDataset

java.lang.Object
org.jfree.data.general.AbstractDataset
org.jfree.data.general.AbstractSeriesDataset
org.jfree.data.xy.AbstractXYDataset
org.jfree.data.xy.AbstractIntervalXYDataset
ucar.unidata.idv.control.chart.MyHistogramDataset
All Implemented Interfaces:
ObjectInputValidation, Serializable, Cloneable, EventListener, org.jfree.data.general.Dataset, org.jfree.data.general.SeriesChangeListener, org.jfree.data.general.SeriesDataset, org.jfree.data.xy.IntervalXYDataset, org.jfree.data.xy.XYDataset, org.jfree.util.PublicCloneable
public class MyHistogramDataset extends org.jfree.data.xy.AbstractIntervalXYDataset implements org.jfree.data.xy.IntervalXYDataset, Cloneable, org.jfree.util.PublicCloneable, Serializable
A dataset that can be used for creating histograms.
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    MyHistogramDataset()
    Creates a new (empty) dataset with a default type of HistogramType.FREQUENCY.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    addSeries(Comparable key, double[] values, int bins)
    Adds a series to the dataset, using the specified number of bins.
    void
    addSeries(Comparable key, double[] values, int bins, double minimum, double maximum)
    Adds a series to the dataset.
    Object
    clone()
    Returns a clone of the dataset.
    boolean
    equals(Object obj)
    Tests this dataset for equality with an arbitrary object.
    Number
    getEndX(int series, int item)
    Returns the end value for a bin.
    Number
    getEndY(int series, int item)
    Returns the end y-value for a bin (which is the same as the y-value, this method exists only to support the general form of the IntervalXYDataset interface).
    int
    getItemCount(int series)
    Returns the number of data items for a series.
    int
    getSeriesCount()
    Returns the number of series in the dataset.
    Comparable
    getSeriesKey(int series)
    Returns the key for a series.
    Number
    getStartX(int series, int item)
    Returns the start value for a bin.
    Number
    getStartY(int series, int item)
    Returns the start y-value for a bin (which is the same as the y-value, this method exists only to support the general form of the IntervalXYDataset interface).
    org.jfree.data.statistics.HistogramType
    getType()
    Returns the histogram type.
    Number
    getX(int series, int item)
    Returns the X value for a bin.
    Number
    getY(int series, int item)
    Returns the y-value for a bin (calculated to take into account the histogram type).
    void
    removeAllSeries()
    Remove series
    void
    setType(org.jfree.data.statistics.HistogramType type)
    Sets the histogram type and sends a DatasetChangeEvent to all registered listeners.

    Methods inherited from class org.jfree.data.xy.AbstractIntervalXYDataset

    getEndXValue, getEndYValue, getStartXValue, getStartYValue

    Methods inherited from class org.jfree.data.xy.AbstractXYDataset

    getDomainOrder, getXValue, getYValue

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

    indexOf, seriesChanged

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

    addChangeListener, fireDatasetChanged, getGroup, hasListener, notifyListeners, removeChangeListener, setGroup, validateObject

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface org.jfree.data.general.Dataset

    addChangeListener, getGroup, removeChangeListener, setGroup

    Methods inherited from interface org.jfree.data.xy.IntervalXYDataset

    getEndXValue, getEndYValue, getStartXValue, getStartYValue

    Methods inherited from interface org.jfree.data.general.SeriesDataset

    indexOf

    Methods inherited from interface org.jfree.data.xy.XYDataset

    getDomainOrder, getXValue, getYValue

  • Constructor Details

    • MyHistogramDataset

      public MyHistogramDataset()
      Creates a new (empty) dataset with a default type of HistogramType.FREQUENCY.

  • Method Details

    • removeAllSeries

      public void removeAllSeries()
      Remove series

    • getType

      public org.jfree.data.statistics.HistogramType getType()
      Returns the histogram type.
      Returns:
      The type (never null).

    • setType

      public void setType(org.jfree.data.statistics.HistogramType type)
      Sets the histogram type and sends a DatasetChangeEvent to all registered listeners.
      Parameters:
      type - the type (null not permitted).

    • addSeries

      public void addSeries(Comparable key, double[] values, int bins)
      Adds a series to the dataset, using the specified number of bins.
      Parameters:
      key - the series key (null not permitted).
      values - the values (null not permitted).
      bins - the number of bins (must be at least 1).

    • addSeries

      public void addSeries(Comparable key, double[] values, int bins, double minimum, double maximum)
      Adds a series to the dataset. Any data value falling on a bin boundary will be assigned to the lower value bin, with the exception of the lower bound of the bin range which is always assigned to the first bin.
      Parameters:
      key - the series key (null not permitted).
      values - the raw observations.
      bins - the number of bins.
      minimum - the lower bound of the bin range.
      maximum - the upper bound of the bin range.

    • getSeriesCount

      public int getSeriesCount()
      Returns the number of series in the dataset.
      Specified by:
      getSeriesCount in interface org.jfree.data.general.SeriesDataset
      Specified by:
      getSeriesCount in class org.jfree.data.general.AbstractSeriesDataset
      Returns:
      The series count.

    • getSeriesKey

      public Comparable getSeriesKey(int series)
      Returns the key for a series.
      Specified by:
      getSeriesKey in interface org.jfree.data.general.SeriesDataset
      Specified by:
      getSeriesKey in class org.jfree.data.general.AbstractSeriesDataset
      Parameters:
      series - the series index (zero based).
      Returns:
      The series key.

    • getItemCount

      public int getItemCount(int series)
      Returns the number of data items for a series.
      Specified by:
      getItemCount in interface org.jfree.data.xy.XYDataset
      Parameters:
      series - the series index (zero based).
      Returns:
      The item count.

    • getX

      public Number getX(int series, int item)
      Returns the X value for a bin. This value won't be used for plotting histograms, since the renderer will ignore it. But other renderers can use it (for example, you could use the dataset to create a line chart).
      Specified by:
      getX in interface org.jfree.data.xy.XYDataset
      Parameters:
      series - the series index (zero based).
      item - the item index (zero based).
      Returns:
      The start value.

    • getY

      public Number getY(int series, int item)
      Returns the y-value for a bin (calculated to take into account the histogram type).
      Specified by:
      getY in interface org.jfree.data.xy.XYDataset
      Parameters:
      series - the series index (zero based).
      item - the item index (zero based).
      Returns:
      The y-value.

    • getStartX

      public Number getStartX(int series, int item)
      Returns the start value for a bin.
      Specified by:
      getStartX in interface org.jfree.data.xy.IntervalXYDataset
      Parameters:
      series - the series index (zero based).
      item - the item index (zero based).
      Returns:
      The start value.

    • getEndX

      public Number getEndX(int series, int item)
      Returns the end value for a bin.
      Specified by:
      getEndX in interface org.jfree.data.xy.IntervalXYDataset
      Parameters:
      series - the series index (zero based).
      item - the item index (zero based).
      Returns:
      The end value.

    • getStartY

      public Number getStartY(int series, int item)
      Returns the start y-value for a bin (which is the same as the y-value, this method exists only to support the general form of the IntervalXYDataset interface).
      Specified by:
      getStartY in interface org.jfree.data.xy.IntervalXYDataset
      Parameters:
      series - the series index (zero based).
      item - the item index (zero based).
      Returns:
      The y-value.

    • getEndY

      public Number getEndY(int series, int item)
      Returns the end y-value for a bin (which is the same as the y-value, this method exists only to support the general form of the IntervalXYDataset interface).
      Specified by:
      getEndY in interface org.jfree.data.xy.IntervalXYDataset
      Parameters:
      series - the series index (zero based).
      item - the item index (zero based).
      Returns:
      The Y value.

    • equals

      public boolean equals(Object obj)
      Tests this dataset for equality with an arbitrary object.
      Overrides:
      equals in class Object
      Parameters:
      obj - the object to test against (null permitted).
      Returns:
      A boolean.

    • clone

      public Object clone() throws CloneNotSupportedException
      Returns a clone of the dataset.
      Specified by:
      clone in interface org.jfree.util.PublicCloneable
      Overrides:
      clone in class org.jfree.data.general.AbstractDataset
      Returns:
      A clone of the dataset.
      Throws:
      CloneNotSupportedException - if the object cannot be cloned.