MutableDataFrame (Macrofocus MOLAP API for Swing SpecificationMOLAP is a Multidimensional, Open-Source, In-Memory, Object-Oriented, and Embeddable API for aggregating datathrough computationally efficient multidimensional cubes developed by Macrofocus. It supports the usualdrill-down, drill-up, slicing, dicing, and pivot operations, alongside a wide choice of built-inaggregation functions, with many additional distinctive features.A good and efficient starting point is the use of the {@link com.macrofocus.molap.dataframe.DataFrameFactory} class. It will get you started within minutes!)

All Superinterfaces:

DataFrame<R,C,V>

All Known Subinterfaces:

RowMajorDataFrame<R,C,V>

All Known Implementing Classes:

AbstractMutableDataFrame, AbstractRowMajorDataFrame, AccessorRowMajorDataFrame, AsyncDataFrame, ClosestDataFrame, ColumnMajorDataFrame, ColumnModelDataFrame, ColumnOrderDataFrame, DefaultDataFrame, DerivedDataFrame, HashMapRowMajorDataFrame, HeadDataFrame, MultipageDataFrame, NumberDataFrame, ReIndexedDataFrame, ReMappedDataFrame, SelectDataFrame, SimpleDataFrame, SubsetDataFrame, TailDataFrame, TimeSeriesDataFrames.DefaultDynamic, TimeSeriesDataFrames.DefaultStatic, WrappedDataFrame
```
public interface MutableDataFrame<R,C,V>
extends DataFrame<R,C,V>
```
Defines the requirements for a data frame that can change.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`MutableDataFrame<V,C,V>`	`reindexRows(C column)`	Returns a new data frame reindexed using the values coming from the specified column.
`MutableDataFrame<MultiKey,C,V>`	`reindexRows(C... rows)`	Returns a new data frame reindexed using the values coming from the specified columns.
`void`	`setValueAt(R row, C column, V value)`	Sets the value for the cell at the intersection of the `column` key and `row` key.

Methods inherited from interface com.macrofocus.molap.dataframe.DataFrame
addDataFrameListener, addWeakDataFrameListener, aggregate, aggregate, append, appendAndReindex, benchmark, columns, filter, getCentroid, getColumn, getColumnAddress, getColumnClass, getColumnCount, getColumnIndex, getColumnKey, getColumnName, getConstant, getCount, getCountDistinct, getCountDistinctWithNull, getDataFrameAggregation, getDistributiveStatistics, getFirst, getFirstQuartile, getMax, getMean, getMedian, getMin, getRandom, getRow, getRowAddress, getRowClass, getRowCount, getRowIndex, getRowKey, getStatistics, getStdDev, getSum, getThirdQuartile, getUnivariateStatistics, getValueAt, getVariance, getVarianceByPopulation, getWeightedMean, getWeightedSum, join, orderRows, print, print, printSchema, reindexColumns, reindexRows, reindexRows, reindexRows, remapColumns, removeColumns, removeDataFrameListener, removeDataFrameListeners, removeDuplicates, rows

- Method Detail
  - setValueAt
```
void setValueAt(R row,
                C column,
                V value)
```
    Sets the value for the cell at the intersection of the column key and row key.
    
    Parameters:
    
    row - the row key whose value is to be changed
    
    column - the column key whose value is to be changed
    
    value - the new value at the specified cell
  - reindexRows
```
MutableDataFrame<V,C,V> reindexRows(C column)
```
    Returns a new data frame reindexed using the values coming from the specified column.
    
    Specified by:
    
    reindexRows in interface DataFrame<R,C,V>
    
    Parameters:
    
    column - the column to use for the label values
    
    Returns:
    
    the reindexed data frame.
  - reindexRows
```
MutableDataFrame<MultiKey,C,V> reindexRows(C... rows)
```
    Returns a new data frame reindexed using the values coming from the specified columns.
    
    Specified by:
    
    reindexRows in interface DataFrame<R,C,V>
    
    Parameters:
    
    rows - the columns to use for the label values
    
    Returns:
    
    the reindexed data frame.