org.apache.spark.ml.feature

Class HashingTF

Object

org.apache.spark.ml.PipelineStage

org.apache.spark.ml.Transformer

org.apache.spark.ml.UnaryTransformer<scala.collection.Iterable<Object>,Vector,HashingTF>

org.apache.spark.ml.feature.HashingTF

All Implemented Interfaces:

java.io.Serializable, Logging, Identifiable, HasInputCol, HasOutputCol, Params

public class HashingTF
extends UnaryTransformer<scala.collection.Iterable<Object>,Vector,HashingTF>

:: AlphaComponent :: Maps a sequence of terms to their term frequencies using the hashing trick.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HashingTF()

Method Summary

Methods

Modifier and Type	Method and Description
int	getNumFeatures()
IntParam	numFeatures() number of features
HashingTF	setNumFeatures(int value)

Methods inherited from class org.apache.spark.ml.UnaryTransformer

setInputCol, setOutputCol, transform, transformSchema

Methods inherited from class org.apache.spark.ml.Transformer

transform, transform

Methods inherited from class Object

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

Methods inherited from interface org.apache.spark.ml.param.HasInputCol

getInputCol, inputCol

Methods inherited from interface org.apache.spark.ml.param.HasOutputCol

getOutputCol, outputCol

Methods inherited from interface org.apache.spark.ml.param.Params

addOutputColumn, checkInputColumn, explainParams, get, getParam, isSet, paramMap, params, set, set, validate, validate

Methods inherited from interface org.apache.spark.ml.Identifiable

uid

Methods inherited from interface org.apache.spark.Logging

initializeIfNecessary, initializeLogging, isTraceEnabled, log_, log, logDebug, logDebug, logError, logError, logInfo, logInfo, logName, logTrace, logTrace, logWarning, logWarning

Constructor Detail

HashingTF

public HashingTF()

Method Detail

numFeatures

public IntParam numFeatures()

number of features

getNumFeatures

public int getNumFeatures()

setNumFeatures

public HashingTF setNumFeatures(int value)