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## org.jfree.data.statistics
Class DefaultStatisticalCategoryDataset

    java.lang.Object
      org.jfree.data.AbstractDataset
          org.jfree.data.statistics.DefaultStatisticalCategoryDataset

All Implemented Interfaces:
  CategoryDataset, java.lang.Cloneable, Dataset, KeyedValues2D, java.io.ObjectInputValidation, RangeInfo, java.io.Serializable, StatisticalCategoryDataset, Values2D

public class DefaultStatisticalCategoryDataset
extends AbstractDataset
implements StatisticalCategoryDataset, RangeInfo

A convenience class that provides a default implementation of the `StatisticalCategoryDataset` interface.

Author:
  Pascal Collet
See Also:
  Serialized Form

Constructor Summary
`DefaultStatisticalCategoryDataset()` Creates a new dataset.

Method Summary
`void` | `add(double mean, double standardDeviation, java.lang.Comparable rowKey, java.lang.Comparable columnKey)` Adds a mean and standard deviation to the table.
`int` | `getColumnCount()` Returns the number of columns in the table.
`int` | `getColumnIndex(java.lang.Comparable key)` Returns the column index for a given key.
`java.lang.Comparable` | `getColumnKey(int column)` Returns a column key.
`java.util.List` | `getColumnKeys()` Returns the column keys.
`java.lang.Number` | `getMaximumRangeValue()` Returns the maximum value in the dataset's range (or null if all the values in the range are null).
`java.lang.Number` | `getMeanValue(java.lang.Comparable rowKey, java.lang.Comparable columnKey)` Returns the mean value for an item.
`java.lang.Number` | `getMeanValue(int row, int column)` Returns the mean value for an item.
`java.lang.Number` | `getMinimumRangeValue()` Returns the minimum value in the dataset's range (or null if all the values in the range are null).
`int` | `getRowCount()` Returns the number of rows in the table.
`int` | `getRowIndex(java.lang.Comparable key)` Returns the row index for a given key.
`java.lang.Comparable` | `getRowKey(int row)` Returns a row key.
`java.util.List` | `getRowKeys()` Returns the row keys.
`java.lang.Number` | `getStdDevValue(java.lang.Comparable rowKey, java.lang.Comparable columnKey)` Returns the standard deviation value for an item.
`java.lang.Number` | `getStdDevValue(int row, int column)` Returns the standard deviation value for an item.
`java.lang.Number` | `getValue(java.lang.Comparable rowKey, java.lang.Comparable columnKey)` Returns the value for an item.
`java.lang.Number` | `getValue(int row, int column)` Returns the value for an item.
`Range` | `getValueRange()` Returns the range of the values in this dataset's range.

Methods inherited from class org.jfree.data.AbstractDataset
`addChangeListener, clone, fireDatasetChanged, getGroup, notifyListeners, removeChangeListener, setGroup, validateObject`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.jfree.data.Dataset
`addChangeListener, getGroup, removeChangeListener, setGroup`

Constructor Detail

### DefaultStatisticalCategoryDataset

    public DefaultStatisticalCategoryDataset()

  Creates a new dataset.

Method Detail

### getMeanValue

    public java.lang.Number getMeanValue(int row,
                                         int column)

  Returns the mean value for an item.

  Specified by:
    `getMeanValue` in interface `StatisticalCategoryDataset`
  Parameters:
    `row` - the row index (zero-based).
    `column` - the column index (zero-based).
  Returns:
    the mean value.

### getValue

    public java.lang.Number getValue(int row,
                                     int column)

  Returns the value for an item.

  Specified by:
    `getValue` in interface `Values2D`
  Parameters:
    `row` - the row index.
    `column` - the column index.
  Returns:
    the value.

### getValue

    public java.lang.Number getValue(java.lang.Comparable rowKey,
                                     java.lang.Comparable columnKey)

  Returns the value for an item.

  Specified by:
    `getValue` in interface `KeyedValues2D`
  Parameters:
    `rowKey` - the row key.
    `columnKey` - the columnKey.
  Returns:
    the value.

### getMeanValue

    public java.lang.Number getMeanValue(java.lang.Comparable rowKey,
                                         java.lang.Comparable columnKey)

  Returns the mean value for an item.

  Specified by:
    `getMeanValue` in interface `StatisticalCategoryDataset`
  Parameters:
    `rowKey` - the row key.
    `columnKey` - the columnKey.
  Returns:
    the mean value.

### getStdDevValue

    public java.lang.Number getStdDevValue(int row,
                                           int column)

  Returns the standard deviation value for an item.

  Specified by:
    `getStdDevValue` in interface `StatisticalCategoryDataset`
  Parameters:
    `row` - the row index (zero-based).
    `column` - the column index (zero-based).
  Returns:
    the standard deviation.

### getStdDevValue

    public java.lang.Number getStdDevValue(java.lang.Comparable rowKey,
                                           java.lang.Comparable columnKey)

  Returns the standard deviation value for an item.

  Specified by:
    `getStdDevValue` in interface `StatisticalCategoryDataset`
  Parameters:
    `rowKey` - the row key.
    `columnKey` - the columnKey.
  Returns:
    the standard deviation.

### getColumnIndex

    public int getColumnIndex(java.lang.Comparable key)

  Returns the column index for a given key.

  Specified by:
    `getColumnIndex` in interface `KeyedValues2D`
  Parameters:
    `key` - the column key.
  Returns:
    the column index.

### getColumnKey

    public java.lang.Comparable getColumnKey(int column)

  Returns a column key.

  Specified by:
    `getColumnKey` in interface `KeyedValues2D`
  Parameters:
    `column` - the column index (zero-based).
  Returns:
    the column key.

### getColumnKeys

    public java.util.List getColumnKeys()

  Returns the column keys.

  Specified by:
    `getColumnKeys` in interface `KeyedValues2D`
  Returns:
    the keys.

### getRowIndex

    public int getRowIndex(java.lang.Comparable key)

  Returns the row index for a given key.

  Specified by:
    `getRowIndex` in interface `KeyedValues2D`
  Parameters:
    `key` - the row key.
  Returns:
    the row index.

### getRowKey

    public java.lang.Comparable getRowKey(int row)

  Returns a row key.

  Specified by:
    `getRowKey` in interface `KeyedValues2D`
  Parameters:
    `row` - the row index (zero-based).
  Returns:
    the row key.

### getRowKeys

    public java.util.List getRowKeys()

  Returns the row keys.

  Specified by:
    `getRowKeys` in interface `KeyedValues2D`
  Returns:
    the keys.

### getRowCount

    public int getRowCount()

  Returns the number of rows in the table.

  Specified by:
    `getRowCount` in interface `Values2D`
  Returns:
    the row count.

### getColumnCount

    public int getColumnCount()

  Returns the number of columns in the table.

  Specified by:
    `getColumnCount` in interface `Values2D`
  Returns:
    the column count.

### add

    public void add(double mean,
                    double standardDeviation,
                    java.lang.Comparable rowKey,
                    java.lang.Comparable columnKey)

  Adds a mean and standard deviation to the table.

  Parameters:
    `mean` - the mean.
    `standardDeviation` - the standard deviation.
    `rowKey` - the row key.
    `columnKey` - the column key.

### getMinimumRangeValue

    public java.lang.Number getMinimumRangeValue()

  Returns the minimum value in the dataset's range (or null if all the values in the range are null).

  Specified by:
    `getMinimumRangeValue` in interface `RangeInfo`
  Returns:
    the minimum value.

### getMaximumRangeValue

    public java.lang.Number getMaximumRangeValue()

  Returns the maximum value in the dataset's range (or null if all the values in the range are null).

  Specified by:
    `getMaximumRangeValue` in interface `RangeInfo`
  Returns:
    the maximum value.

### getValueRange

    public Range getValueRange()

  Returns the range of the values in this dataset's range.

  Specified by:
    `getValueRange` in interface `RangeInfo`
  Returns:
    the range.

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