org.apache.mahout.utils.vectors.arff

Interface ARFFModel

All Known Implementing Classes:

MapBackedARFFModel

public interface ARFFModel

An interface for representing an ARFFModel. Implementations can decide on the best approach for storing the model, as some approaches will be fine for smaller files, while larger ones may require a better implementation.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ARFF_COMMENT
static String	ARFF_SPARSE
static String	ARFF_SPARSE_END
static String	ATTRIBUTE
static String	DATA
static String	RELATION

Method Summary

Methods

Modifier and Type	Method and Description
void	addDateFormat(Integer idx, DateFormat format)
void	addLabel(String label, Integer idx)
void	addNominal(String label, String nominal, int idx)
void	addType(Integer idx, ARFFType type)
ARFFType	getARFFType(Integer idx)
DateFormat	getDateFormat(Integer idx)
Map<String,Integer>	getLabelBindings() The vector attributes (labels in Mahout speak)
Integer	getLabelIndex(String label)
int	getLabelSize()
Map<String,Map<String,Integer>>	getNominalMap()
Integer	getNominalValue(String label, String nominal)
String	getRelation()
double	getValue(String data, int idx)
long	getWordCount() The count of the number of words seen
Map<String,Long>	getWords()
void	setRelation(String relation)

Field Detail

ARFF_SPARSE

static final String ARFF_SPARSE

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Constant Field Values

ARFF_SPARSE_END

static final String ARFF_SPARSE_END

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Constant Field Values

ARFF_COMMENT

static final String ARFF_COMMENT

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Constant Field Values

ATTRIBUTE

static final String ATTRIBUTE

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Constant Field Values

DATA

static final String DATA

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Constant Field Values

RELATION

static final String RELATION

See Also:

Constant Field Values

Method Detail

getRelation

String getRelation()

setRelation

void setRelation(String relation)

getLabelBindings

Map<String,Integer> getLabelBindings()

The vector attributes (labels in Mahout speak)

Returns:

the map

getNominalValue

Integer getNominalValue(String label,
                      String nominal)

addNominal

void addNominal(String label,
              String nominal,
              int idx)

getDateFormat

DateFormat getDateFormat(Integer idx)

addDateFormat

void addDateFormat(Integer idx,
                 DateFormat format)

getLabelIndex

Integer getLabelIndex(String label)

addLabel

void addLabel(String label,
            Integer idx)

getARFFType

ARFFType getARFFType(Integer idx)

addType

void addType(Integer idx,
           ARFFType type)

getWordCount

long getWordCount()

The count of the number of words seen

Returns:

the count

getValue

double getValue(String data,
              int idx)

getNominalMap

Map<String,Map<String,Integer>> getNominalMap()

getLabelSize

int getLabelSize()

getWords

Map<String,Long> getWords()