Package org.apache.spark.ml.feature

Class ChiSqSelectorModel

Object

org.apache.spark.ml.PipelineStage

org.apache.spark.ml.Transformer

org.apache.spark.ml.Model<T>

org.apache.spark.ml.feature.SelectorModel<ChiSqSelectorModel>

org.apache.spark.ml.feature.ChiSqSelectorModel

All Implemented Interfaces:

Serializable, org.apache.spark.internal.Logging, org.apache.spark.ml.feature.SelectorParams, Params, HasFeaturesCol, HasLabelCol, HasOutputCol, Identifiable, MLWritable

public final class ChiSqSelectorModel
extends org.apache.spark.ml.feature.SelectorModel<ChiSqSelectorModel>

Model fitted by ChiSqSelector.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ChiSqSelectorModel.ChiSqSelectorModelWriter
static class	ChiSqSelectorModel.Data$

Nested classes/interfaces inherited from interface org.apache.spark.internal.Logging

org.apache.spark.internal.Logging.LogStringContext, org.apache.spark.internal.Logging.SparkShellLoggingFilter

Method Summary

Modifier and Type	Method	Description
ChiSqSelectorModel	copy(ParamMap extra)	Creates a copy of this instance with the same UID and some extra params.
static ChiSqSelectorModel	load(String path)
static MLReader<ChiSqSelectorModel>	read()
int[]	selectedFeatures()
ChiSqSelectorModel	setFeaturesCol(String value)
ChiSqSelectorModel	setOutputCol(String value)
String	toString()
StructType	transformSchema(StructType schema)	Check transform validity and derive the output schema from the input schema.
String	uid()	An immutable unique ID for the object and its derivatives.
MLWriter	write()	Returns an MLWriter instance for this ML instance.

Methods inherited from class org.apache.spark.ml.feature.SelectorModel

compressSparse, fdr, featuresCol, fpr, fwe, getFdr, getFeaturesCol, getFpr, getFwe, getLabelCol, getNumTopFeatures, getOutputCol, getPercentile, getSelectorType, labelCol, numTopFeatures, org$apache$spark$ml$feature$SelectorParams$_setter_$fdr_$eq, org$apache$spark$ml$feature$SelectorParams$_setter_$fpr_$eq, org$apache$spark$ml$feature$SelectorParams$_setter_$fwe_$eq, org$apache$spark$ml$feature$SelectorParams$_setter_$numTopFeatures_$eq, org$apache$spark$ml$feature$SelectorParams$_setter_$percentile_$eq, org$apache$spark$ml$feature$SelectorParams$_setter_$selectorType_$eq, org$apache$spark$ml$param$shared$HasFeaturesCol$_setter_$featuresCol_$eq, org$apache$spark$ml$param$shared$HasLabelCol$_setter_$labelCol_$eq, org$apache$spark$ml$param$shared$HasOutputCol$_setter_$outputCol_$eq, outputCol, percentile, prepOutputField, save, selectorType, transform

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

hasParent, parent, setParent

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

transform, transform, transform

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

params

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.spark.internal.Logging

initializeForcefully, initializeLogIfNecessary, initializeLogIfNecessary, initializeLogIfNecessary$default$2, isTraceEnabled, log, logBasedOnLevel, logDebug, logDebug, logDebug, logDebug, logError, logError, logError, logError, logInfo, logInfo, logInfo, logInfo, logName, LogStringContext, logTrace, logTrace, logTrace, logTrace, logWarning, logWarning, logWarning, logWarning, MDC, org$apache$spark$internal$Logging$$log_, org$apache$spark$internal$Logging$$log__$eq, withLogContext

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

clear, copyValues, defaultCopy, defaultParamMap, estimateMatadataSize, explainParam, explainParams, extractParamMap, extractParamMap, get, getDefault, getOrDefault, getParam, hasDefault, hasParam, isDefined, isSet, onParamChange, paramMap, params, set, set, set, setDefault, setDefault, shouldOwn

Method Details

read

public static MLReader<ChiSqSelectorModel> read()

load

public static ChiSqSelectorModel load(String path)

uid

public String uid()

Description copied from interface: Identifiable

An immutable unique ID for the object and its derivatives.

Specified by:

uid in interface Identifiable

Overrides:

uid in class org.apache.spark.ml.feature.SelectorModel<ChiSqSelectorModel>

Returns:

(undocumented)

selectedFeatures

public int[] selectedFeatures()

Overrides:

selectedFeatures in class org.apache.spark.ml.feature.SelectorModel<ChiSqSelectorModel>

setFeaturesCol

public ChiSqSelectorModel setFeaturesCol(String value)

Overrides:

setFeaturesCol in class org.apache.spark.ml.feature.SelectorModel<ChiSqSelectorModel>

setOutputCol

public ChiSqSelectorModel setOutputCol(String value)

Overrides:

setOutputCol in class org.apache.spark.ml.feature.SelectorModel<ChiSqSelectorModel>

transformSchema

public StructType transformSchema(StructType schema)

Description copied from class: PipelineStage

Check transform validity and derive the output schema from the input schema.

We check validity for interactions between parameters during transformSchema and raise an exception if any parameter value is invalid. Parameter value checks which do not depend on other parameters are handled by Param.validate().

Typical implementation should first conduct verification on schema change and parameter validity, including complex parameter interaction checks.

Overrides:

transformSchema in class org.apache.spark.ml.feature.SelectorModel<ChiSqSelectorModel>

Parameters:

schema - (undocumented)

Returns:

(undocumented)

copy

public ChiSqSelectorModel copy(ParamMap extra)

Description copied from interface: Params

Creates a copy of this instance with the same UID and some extra params. Subclasses should implement this method and set the return type properly. See defaultCopy().

Specified by:

copy in interface Params

Specified by:

copy in class Model<ChiSqSelectorModel>

Parameters:

extra - (undocumented)

Returns:

(undocumented)

write

public MLWriter write()

Description copied from interface: MLWritable

Returns an MLWriter instance for this ML instance.

Returns:

(undocumented)

toString

public String toString()

Specified by:

toString in interface Identifiable

Overrides:

toString in class Object