org.jfree.data.statistics
Interface StatisticalCategoryDataset

All Superinterfaces:

CategoryDataset, Dataset, KeyedValues2D, Values2D

All Known Implementing Classes:

DefaultStatisticalCategoryDataset

public interface StatisticalCategoryDataset
extends CategoryDataset

A category dataset that defines a mean and standard deviation value for each item.

Method Summary

Number	getMeanValue(Comparable rowKey, Comparable columnKey) Returns the mean value for an item.
Number	getMeanValue(int row, int column) Returns the mean value for an item.
Number	getStdDevValue(Comparable rowKey, Comparable columnKey) Returns the standard deviation value for an item.
Number	getStdDevValue(int row, int column) Returns the standard deviation value for an item.

Methods inherited from interface org.jfree.data.KeyedValues2D

getColumnIndex, getColumnKey, getColumnKeys, getRowIndex, getRowKey, getRowKeys, getValue

Methods inherited from interface org.jfree.data.Values2D

getColumnCount, getRowCount, getValue

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

addChangeListener, getGroup, removeChangeListener, setGroup

Method Detail

getMeanValue

Number getMeanValue(int row,
                    int column)

Returns the mean value for an item.

Parameters:

row - the row index (zero-based).

column - the column index (zero-based).

Returns:

The mean value (possibly null).

getMeanValue

Number getMeanValue(Comparable rowKey,
                    Comparable columnKey)

Returns the mean value for an item.

Parameters:

rowKey - the row key.

columnKey - the columnKey.

Returns:

The mean value (possibly null).

getStdDevValue

Number getStdDevValue(int row,
                      int column)

Returns the standard deviation value for an item.

Parameters:

row - the row index (zero-based).

column - the column index (zero-based).

Returns:

The standard deviation (possibly null).

getStdDevValue

Number getStdDevValue(Comparable rowKey,
                      Comparable columnKey)

Returns the standard deviation value for an item.

Parameters:

rowKey - the row key.

columnKey - the columnKey.

Returns:

The standard deviation (possibly null).