public class HashingTF extends Transformer
Constructor and Description |
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HashingTF() |
HashingTF(java.lang.String uid) |
Modifier and Type | Method and Description |
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HashingTF |
copy(ParamMap extra)
Creates a copy of this instance with the same UID and some extra params.
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int |
getNumFeatures() |
static HashingTF |
load(java.lang.String path) |
IntParam |
numFeatures()
Number of features.
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HashingTF |
setInputCol(java.lang.String value) |
HashingTF |
setNumFeatures(int value) |
HashingTF |
setOutputCol(java.lang.String value) |
DataFrame |
transform(DataFrame dataset)
Transforms the input dataset.
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StructType |
transformSchema(StructType schema)
:: DeveloperApi ::
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java.lang.String |
uid()
An immutable unique ID for the object and its derivatives.
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transform, transform, transform
transformSchema
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
clear, copyValues, defaultCopy, defaultParamMap, explainParam, explainParams, extractParamMap, extractParamMap, get, getDefault, getOrDefault, getParam, hasDefault, hasParam, isDefined, isSet, paramMap, params, set, set, set, setDefault, setDefault, shouldOwn, validateParams
toString
initializeIfNecessary, initializeLogging, isTraceEnabled, log_, log, logDebug, logDebug, logError, logError, logInfo, logInfo, logName, logTrace, logTrace, logWarning, logWarning
public static HashingTF load(java.lang.String path)
public java.lang.String uid()
Identifiable
public HashingTF setInputCol(java.lang.String value)
public HashingTF setOutputCol(java.lang.String value)
public IntParam numFeatures()
public int getNumFeatures()
public HashingTF setNumFeatures(int value)
public DataFrame transform(DataFrame dataset)
Transformer
transform
in class Transformer
dataset
- (undocumented)public StructType transformSchema(StructType schema)
PipelineStage
Derives the output schema from the input schema.
transformSchema
in class PipelineStage
schema
- (undocumented)public HashingTF copy(ParamMap extra)
Params
copy
in interface Params
copy
in class Transformer
extra
- (undocumented)defaultCopy()