de.lmu.ifi.dbs.elki.parser
Class SparseBitVectorLabelParser

java.lang.Object
  de.lmu.ifi.dbs.elki.logging.AbstractLoggable
      de.lmu.ifi.dbs.elki.parser.AbstractParser<BitVector>
          de.lmu.ifi.dbs.elki.parser.SparseBitVectorLabelParser

All Implemented Interfaces:

Parser<BitVector>, Parameterizable

@Title(value="Sparse Bit Vector Label Parser")
@Description(value="Parser for the lines of the following format:\nA single line provides a single sparse BitVector. The indices of the one-bits are separated by whitespace. The first index starts with zero. Any substring not containing whitespace is tried to be read as an Integer. If this fails, it will be appended to a label. (Thus, any label must not be parseable as an Integer.) Empty lines and lines beginning with \"#\" will be ignored.")
public class SparseBitVectorLabelParser
extends AbstractParser<BitVector>
implements Parameterizable

Provides a parser for parsing one sparse BitVector per line, where the indices of the one-bits are separated by whitespace. The first index starts with zero.

Several labels may be given per BitVector, a label must not be parseable as an Integer. Lines starting with "#" will be ignored.

Author:

Elke Achtert

Field Summary

Fields inherited from class de.lmu.ifi.dbs.elki.parser.AbstractParser

ATTRIBUTE_CONCATENATION, COMMENT, WHITESPACE_PATTERN

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

debug, logger

Constructor Summary

SparseBitVectorLabelParser()
Provides a parser for parsing one sparse BitVector per line, where the indices of the one-bits are separated by whitespace.

Method Summary

ParsingResult<BitVector>

parse(InputStream in) Returns a list of the objects parsed from the specified input stream and a list of the labels associated with the objects.

Methods inherited from class de.lmu.ifi.dbs.elki.parser.AbstractParser

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

Constructor Detail

SparseBitVectorLabelParser

public SparseBitVectorLabelParser()

Provides a parser for parsing one sparse BitVector per line, where the indices of the one-bits are separated by whitespace.

Several labels may be given per BitVector, a label must not be parseable as an Integer. Lines starting with "#" will be ignored.

Method Detail

parse

public ParsingResult<BitVector> parse(InputStream in)

Description copied from interface: Parser

Returns a list of the objects parsed from the specified input stream and a list of the labels associated with the objects.

Specified by:

parse in interface Parser<BitVector>

Parameters:

in - the stream to parse objects from

Returns:

a list containing those objects parsed from the input stream and their associated labels.