de.lmu.ifi.dbs.elki.parser.meta
Class ProjectionParser<V extends NumberVector<V,?>>

java.lang.Object
  de.lmu.ifi.dbs.elki.logging.AbstractLoggable
      de.lmu.ifi.dbs.elki.parser.meta.MetaParser<V>
          de.lmu.ifi.dbs.elki.parser.meta.ProjectionParser<V>

Type Parameters:

V - the type of NumberVector contained in both the ParsingResult of the base parser and the projected ParsingResult of this ProjectionParser

All Implemented Interfaces:

Parser<V>, Parameterizable

Direct Known Subclasses:

DoubleVectorProjectionParser, SparseFloatVectorProjectionParser

public abstract class ProjectionParser<V extends NumberVector<V,?>>
extends MetaParser<V>

A ProjectionParser projects the ParsingResult of its base parser onto a subspace specified by a BitSet.

Author:

Arthur Zimek

Field Summary

static OptionID	SELECTED_ATTRIBUTES_ID ID for the parameter SELECTED_ATTRIBUTES_PARAM.
private IntListParameter	SELECTED_ATTRIBUTES_PARAM Selected attributes parameter.
private BitSet	selectedAttributes Keeps the selection of the subspace to project onto.

Fields inherited from class de.lmu.ifi.dbs.elki.parser.meta.MetaParser

BASEPARSER_ID

Fields inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable

debug, logger

Constructor Summary

ProjectionParser(Parameterization config)
Constructor, adhering to Parameterizable

Method Summary

BitSet	getSelectedAttributes() Provides a BitSet with the bits set to true corresponding to the selected attributes in SELECTED_ATTRIBUTES_PARAM.
void	setSelectedAttributes(BitSet selectedAttributes) Sets the bits set to true in the given BitSet as selected attributes in SELECTED_ATTRIBUTES_PARAM.

Methods inherited from class de.lmu.ifi.dbs.elki.parser.meta.MetaParser

retrieveBaseParsingresult, toString

Methods inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable

debugFine, debugFiner, debugFinest, exception, progress, verbose, warning

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.parser.Parser

parse

Field Detail

selectedAttributes

private BitSet selectedAttributes

Keeps the selection of the subspace to project onto.

SELECTED_ATTRIBUTES_ID

public static final OptionID SELECTED_ATTRIBUTES_ID

ID for the parameter SELECTED_ATTRIBUTES_PARAM.

SELECTED_ATTRIBUTES_PARAM

private final IntListParameter SELECTED_ATTRIBUTES_PARAM

Selected attributes parameter.

Key: -projectionparser.selectedattributes

Constructor Detail

ProjectionParser

public ProjectionParser(Parameterization config)

Constructor, adhering to Parameterizable

Parameters:

config - Parameterization

Method Detail

setSelectedAttributes

public void setSelectedAttributes(BitSet selectedAttributes)

Sets the bits set to true in the given BitSet as selected attributes in SELECTED_ATTRIBUTES_PARAM.

The index in the BitSet is expected to be shifted to the left by one, i.e., index 0 in the BitSet relates to the first attribute.

Parameters:

selectedAttributes - the new selected attributes

getSelectedAttributes

public BitSet getSelectedAttributes()

Provides a BitSet with the bits set to true corresponding to the selected attributes in SELECTED_ATTRIBUTES_PARAM.

The index in the BitSet is shifted to the left by one, i.e., index 0 in the BitSet relates to the first attribute.

Returns:

the selected attributes