edu.stanford.nlp.dbm
Class DataMatrix

java.lang.Object
  |
  +--edu.stanford.nlp.dbm.DataMatrix

All Implemented Interfaces:

MatrixWrapper

Direct Known Subclasses:

BOFDataMatrix, RestrictedDataMatrix

public abstract class DataMatrix

extends Object

implements MatrixWrapper

Class with methods to construct a DataMatrix (such as a term-document matrix), from the initial Objects (such as Documents).

Field Summary

protected IndexedSet	features
protected GrowableMatrix	matrix

Constructor Summary

DataMatrix()

Method Summary

int	add(Featurizable f) inserts Featurizable Object into DataMatrix, and returns its index
List	features()
Matrix	getMatrix() Returns underlying Matrix
protected void	initialize(GrowableMatrix m, IndexedSet f) initializes DataMatrix with Matrix m and SerialIndexed set f
protected abstract Array	insert(Collection c) inserts the elements in a Collection into the DataMatrix, and returns the inserted FeatureVector

Methods inherited from class java.lang.Object

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

Field Detail

matrix

protected GrowableMatrix matrix

features

protected IndexedSet features

Constructor Detail

DataMatrix

public DataMatrix()

Method Detail

initialize

protected void initialize(GrowableMatrix m,
                          IndexedSet f)

initializes DataMatrix with Matrix m and SerialIndexed set f

insert

protected abstract Array insert(Collection c)

inserts the elements in a Collection into the DataMatrix, and returns the inserted FeatureVector

add

public int add(Featurizable f)

inserts Featurizable Object into DataMatrix, and returns its index

features

public List features()

getMatrix

public Matrix getMatrix()

Description copied from interface: MatrixWrapper

Returns underlying Matrix

Specified by:

getMatrix in interface MatrixWrapper