Package com.macrofocus.molap.dataframe

Class IndexedDataFrame<R,V>

java.lang.Object

com.macrofocus.molap.dataframe.AbstractDataFrame<R,java.lang.Object,V>

com.macrofocus.molap.dataframe.IndexedDataFrame<R,V>

Type Parameters:

R - the type of row keys

V - the type of column keys

All Implemented Interfaces:

DataFrame<R,java.lang.Object,V>

public class IndexedDataFrame<R,V>
extends AbstractDataFrame<R,java.lang.Object,V>

An indexed data frame.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	IndexedDataFrame.ColumnSeries
class	IndexedDataFrame.ColumnSeries2<K>

Constructor Summary

Constructors

Constructor	Description
IndexedDataFrame(UniqueIndex<R> rowIndex, UniqueIndex columnIndex, Series<R,V>[] series)
IndexedDataFrame(Series<R,V>... series)

Method Summary

Modifier and Type	Method	Description
java.lang.Iterable<java.lang.Object>	columns()	Returns the column keys.
Series<R,V>	getColumn(java.lang.Object column)	Returns a series of all the values of a given column.
int	getColumnAddress(java.lang.Object column)	Returns the absolute index for the specified column key.
java.lang.Class	getColumnClass(java.lang.Object column)	Returns the most specific superclass for all cell values in a column
int	getColumnCount()	Returns the number of columns contained by this data frame.
UniqueIndex<java.lang.Object>	getColumnIndex()	Gets the index used to access the columns.
java.lang.Object	getColumnKey(int index)	Returns the column key at the specified absolute index.
Series<java.lang.Object,?>	getRow(java.lang.Object row)	Returns a series of all the values of a given row.
int	getRowAddress(R row)	Returns the absolute index for the specified row key.
java.lang.Class	getRowClass(R row)	Returns the most specific superclass for all cell values in a row.
int	getRowCount()	Returns the number of rows contained by the this data frame.
UniqueIndex<R>	getRowIndex()	Gets the index used to access the rows.
R	getRowKey(int index)	Returns the row key at the specified absolute index.
V	getValueAt(R row, java.lang.Object column)	Returns the value for the cell at the intersection of the column key and row key.
DataFrame	join(Series series, java.lang.Object[] columns)
DataFrame<MultiKey,java.lang.Object,V>	reindexRows(java.lang.Object... rows)	Returns a new data frame reindexed using the values coming from the specified rows.
java.lang.Iterable<R>	rows()	Returns the row keys.

Methods inherited from class com.macrofocus.molap.dataframe.AbstractDataFrame

addDataFrameListener, addWeakDataFrameListener, aggregate, aggregate, append, appendAndReindex, benchmark, filter, getCentroid, getColumnName, getConstant, getCount, getCountDistinct, getCountDistinctWithNull, getCube, getDataFrameAggregation, getDistributiveStatistics, getFirst, getFirstQuartile, getMax, getMean, getMedian, getMin, getRandom, getStatistics, getStdDev, getSum, getThirdQuartile, getUnivariateStatistics, getVariance, getVarianceByPopulation, getWeightedMean, getWeightedSum, notifyDataFrameChanged, orderRows, print, print, printSchema, reindexColumns, reindexRows, reindexRows, reindexRows, reindexRows, remapColumns, removeColumns, removeDataFrameListener, removeDataFrameListeners, removeDuplicates

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexedDataFrame

public IndexedDataFrame(Series<R,V>... series)

IndexedDataFrame

public IndexedDataFrame(UniqueIndex<R> rowIndex,
                        UniqueIndex columnIndex,
                        Series<R,V>[] series)

Method Detail

getColumnIndex

public UniqueIndex<java.lang.Object> getColumnIndex()

Description copied from interface: DataFrame

Gets the index used to access the columns.

Returns:

the column index

getRowIndex

public UniqueIndex<R> getRowIndex()

Description copied from interface: DataFrame

Gets the index used to access the rows.

Returns:

the row index

getRowClass

public java.lang.Class getRowClass(R row)

Description copied from interface: DataFrame

Returns the most specific superclass for all cell values in a row.

Parameters:

row - the key of the row

Returns:

the common ancestor class of the object values in the row.

getColumnClass

public java.lang.Class getColumnClass(java.lang.Object column)

Description copied from interface: DataFrame

Returns the most specific superclass for all cell values in a column

Parameters:

column - the key of the column

Returns:

the common ancestor class of the object values in the column.

getRow

public Series<java.lang.Object,?> getRow(java.lang.Object row)

Description copied from interface: DataFrame

Returns a series of all the values of a given row.

Parameters:

row - the row key

Returns:

a Series object

getColumn

public Series<R,V> getColumn(java.lang.Object column)

Description copied from interface: DataFrame

Returns a series of all the values of a given column.

Specified by:

getColumn in interface DataFrame<R,java.lang.Object,V>

Overrides:

getColumn in class AbstractDataFrame<R,java.lang.Object,V>

Parameters:

column - the row key

Returns:

a Series object

getValueAt

public V getValueAt(R row,
                    java.lang.Object column)

Description copied from interface: DataFrame

Returns 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 queried

column - the column key whose value is to be queried

Returns:

the value Object at the specified cell

rows

public java.lang.Iterable<R> rows()

Description copied from interface: DataFrame

Returns the row keys.

Specified by:

rows in interface DataFrame<R,java.lang.Object,V>

Overrides:

rows in class AbstractDataFrame<R,java.lang.Object,V>

Returns:

the row keys

columns

public java.lang.Iterable<java.lang.Object> columns()

Description copied from interface: DataFrame

Returns the column keys.

Specified by:

columns in interface DataFrame<R,java.lang.Object,V>

Overrides:

columns in class AbstractDataFrame<R,java.lang.Object,V>

Returns:

the column keys

getRowKey

public R getRowKey(int index)

Description copied from interface: DataFrame

Returns the row key at the specified absolute index. This is the inverse of DataFrame.getRowAddress(Object).

Specified by:

getRowKey in interface DataFrame<R,java.lang.Object,V>

Overrides:

getRowKey in class AbstractDataFrame<R,java.lang.Object,V>

Parameters:

index - the index

Returns:

the row key

getColumnKey

public java.lang.Object getColumnKey(int index)

Description copied from interface: DataFrame

Returns the column key at the specified absolute index. This is the inverse of DataFrame.getColumnAddress(Object).

Specified by:

getColumnKey in interface DataFrame<R,java.lang.Object,V>

Overrides:

getColumnKey in class AbstractDataFrame<R,java.lang.Object,V>

Parameters:

index - the index

Returns:

the column key

getRowAddress

public int getRowAddress(R row)

Description copied from interface: DataFrame

Returns the absolute index for the specified row key. This is the inverse of DataFrame.getRowKey(int).

Specified by:

getRowAddress in interface DataFrame<R,java.lang.Object,V>

Overrides:

getRowAddress in class AbstractDataFrame<R,java.lang.Object,V>

Parameters:

row - the row key

Returns:

the absolute index of the specified key.

getColumnAddress

public int getColumnAddress(java.lang.Object column)

Description copied from interface: DataFrame

Returns the absolute index for the specified column key. This is the inverse of DataFrame.getColumnKey(int).

Specified by:

getColumnAddress in interface DataFrame<R,java.lang.Object,V>

Overrides:

getColumnAddress in class AbstractDataFrame<R,java.lang.Object,V>

Parameters:

column - the column key

Returns:

the absolute index of the specified key.

getRowCount

public int getRowCount()

Description copied from interface: DataFrame

Returns the number of rows contained by the this data frame.

Specified by:

getRowCount in interface DataFrame<R,java.lang.Object,V>

Overrides:

getRowCount in class AbstractDataFrame<R,java.lang.Object,V>

Returns:

the number of rows.

getColumnCount

public int getColumnCount()

Description copied from interface: DataFrame

Returns the number of columns contained by this data frame.

Specified by:

getColumnCount in interface DataFrame<R,java.lang.Object,V>

Overrides:

getColumnCount in class AbstractDataFrame<R,java.lang.Object,V>

Returns:

the number of columns.

reindexRows

public DataFrame<MultiKey,java.lang.Object,V> reindexRows(java.lang.Object... rows)

Description copied from interface: DataFrame

Returns a new data frame reindexed using the values coming from the specified rows.

Specified by:

reindexRows in interface DataFrame<R,java.lang.Object,V>

Overrides:

reindexRows in class AbstractDataFrame<R,java.lang.Object,V>

Parameters:

rows - the columns to use for the label values

Returns:

the reindexed data frame.

join

public DataFrame join(Series series,
                      java.lang.Object[] columns)