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java.lang.Objectorg.jfree.data.general.AbstractDataset
org.jfree.data.general.AbstractSeriesDataset
org.jfree.data.xy.AbstractXYDataset
org.jfree.data.xy.AbstractIntervalXYDataset
org.jfree.data.statistics.HistogramDataset
public class HistogramDataset
A dataset that can be used for creating histograms.
SimpleHistogramDataset,
Serialized Form| Constructor Summary | |
|---|---|
HistogramDataset()
Creates a new (empty) dataset with a default type of HistogramType.FREQUENCY. |
|
| Method Summary | |
|---|---|
void |
addSeries(java.lang.Comparable key,
double[] values,
int bins)
Adds a series to the dataset, using the specified number of bins. |
void |
addSeries(java.lang.Comparable key,
double[] values,
int bins,
double minimum,
double maximum)
Adds a series to the dataset. |
java.lang.Object |
clone()
Returns a clone of the dataset. |
boolean |
equals(java.lang.Object obj)
Tests this dataset for equality with an arbitrary object. |
java.lang.Number |
getEndX(int series,
int item)
Returns the end value for a bin. |
java.lang.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. |
java.lang.Comparable |
getSeriesKey(int series)
Returns the key for a series. |
java.lang.Number |
getStartX(int series,
int item)
Returns the start value for a bin. |
java.lang.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). |
HistogramType |
getType()
Returns the histogram type. |
java.lang.Number |
getX(int series,
int item)
Returns the X value for a bin. |
java.lang.Number |
getY(int series,
int item)
Returns the y-value for a bin (calculated to take into account the histogram type). |
void |
setType(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.xy.IntervalXYDataset |
|---|
getEndXValue, getEndYValue, getStartXValue, getStartYValue |
| Methods inherited from interface org.jfree.data.xy.XYDataset |
|---|
getDomainOrder, getXValue, getYValue |
| Methods inherited from interface org.jfree.data.general.SeriesDataset |
|---|
indexOf |
| Methods inherited from interface org.jfree.data.general.Dataset |
|---|
addChangeListener, getGroup, removeChangeListener, setGroup |
| Constructor Detail |
|---|
public HistogramDataset()
HistogramType.FREQUENCY.
| Method Detail |
|---|
public HistogramType getType()
null).public void setType(HistogramType type)
DatasetChangeEvent to all
registered listeners.
type - the type (null not permitted).
public void addSeries(java.lang.Comparable key,
double[] values,
int bins)
key - the series key (null not permitted).values - the values (null not permitted).bins - the number of bins (must be at least 1).
public void addSeries(java.lang.Comparable key,
double[] values,
int bins,
double minimum,
double maximum)
key - the series key (null not permitted).values - the raw observations.bins - the number of bins (must be at least 1).minimum - the lower bound of the bin range.maximum - the upper bound of the bin range.public int getSeriesCount()
getSeriesCount in interface SeriesDatasetgetSeriesCount in class AbstractSeriesDatasetpublic java.lang.Comparable getSeriesKey(int series)
getSeriesKey in interface SeriesDatasetgetSeriesKey in class AbstractSeriesDatasetseries - the series index (in the range 0 to
getSeriesCount() - 1).
java.lang.IndexOutOfBoundsException - if series is outside the
specified range.public int getItemCount(int series)
getItemCount in interface XYDatasetseries - the series index (in the range 0 to
getSeriesCount() - 1).
java.lang.IndexOutOfBoundsException - if series is outside the
specified range.
public java.lang.Number getX(int series,
int item)
getX in interface XYDatasetseries - the series index (in the range 0 to
getSeriesCount() - 1).item - the item index (zero based).
java.lang.IndexOutOfBoundsException - if series is outside the
specified range.
public java.lang.Number getY(int series,
int item)
getY in interface XYDatasetseries - the series index (in the range 0 to
getSeriesCount() - 1).item - the item index (zero based).
java.lang.IndexOutOfBoundsException - if series is outside the
specified range.
public java.lang.Number getStartX(int series,
int item)
getStartX in interface IntervalXYDatasetseries - the series index (in the range 0 to
getSeriesCount() - 1).item - the item index (zero based).
java.lang.IndexOutOfBoundsException - if series is outside the
specified range.
public java.lang.Number getEndX(int series,
int item)
getEndX in interface IntervalXYDatasetseries - the series index (in the range 0 to
getSeriesCount() - 1).item - the item index (zero based).
java.lang.IndexOutOfBoundsException - if series is outside the
specified range.
public java.lang.Number getStartY(int series,
int item)
IntervalXYDataset interface).
getStartY in interface IntervalXYDatasetseries - the series index (in the range 0 to
getSeriesCount() - 1).item - the item index (zero based).
java.lang.IndexOutOfBoundsException - if series is outside the
specified range.
public java.lang.Number getEndY(int series,
int item)
IntervalXYDataset interface).
getEndY in interface IntervalXYDatasetseries - the series index (in the range 0 to
getSeriesCount() - 1).item - the item index (zero based).
java.lang.IndexOutOfBoundsException - if series is outside the
specified range.public boolean equals(java.lang.Object obj)
equals in class java.lang.Objectobj - the object to test against (null permitted).
public java.lang.Object clone()
throws java.lang.CloneNotSupportedException
clone in interface org.jfree.util.PublicCloneableclone in class AbstractDatasetjava.lang.CloneNotSupportedException - if the object cannot be cloned.
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