org.apache.spark.ml.feature

Interface OneHotEncoderBase

All Superinterfaces:

HasHandleInvalid, HasInputCol, HasInputCols, HasOutputCol, HasOutputCols, Identifiable, Params, java.io.Serializable

All Known Implementing Classes:

OneHotEncoder, OneHotEncoderModel

public interface OneHotEncoderBase
extends Params, HasHandleInvalid, HasInputCol, HasInputCols, HasOutputCol, HasOutputCols

Private trait for params and common methods for OneHotEncoder and OneHotEncoderModel

Method Summary

Modifier and Type	Method and Description
BooleanParam	dropLast() Whether to drop the last category in the encoded vector (default: true)
boolean	getDropLast()
scala.Tuple2<String[],String[]>	getInOutCols() Returns the input and output column names corresponding in pair.
Param<String>	handleInvalid() Param for how to handle invalid data during transform().
StructType	validateAndTransformSchema(StructType schema, boolean dropLast, boolean keepInvalid)

Methods inherited from interface org.apache.spark.ml.param.shared.HasHandleInvalid

getHandleInvalid

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

getInputCol, inputCol

Methods inherited from interface org.apache.spark.ml.param.shared.HasInputCols

getInputCols, inputCols

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

getOutputCol, outputCol

Methods inherited from interface org.apache.spark.ml.param.shared.HasOutputCols

getOutputCols, outputCols

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

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

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

toString, uid

Method Detail

dropLast

BooleanParam dropLast()

Whether to drop the last category in the encoded vector (default: true)

Returns:

(undocumented)

getDropLast

boolean getDropLast()

getInOutCols

scala.Tuple2<String[],String[]> getInOutCols()

Returns the input and output column names corresponding in pair.

handleInvalid

Param<String> handleInvalid()

Param for how to handle invalid data during transform(). Options are 'keep' (invalid data presented as an extra categorical feature) or 'error' (throw an error). Note that this Param is only used during transform; during fitting, invalid data will result in an error. Default: "error"

Specified by:

handleInvalid in interface HasHandleInvalid

Returns:

(undocumented)

validateAndTransformSchema

StructType validateAndTransformSchema(StructType schema,
                                      boolean dropLast,
                                      boolean keepInvalid)