Package org.apache.spark.ml.attribute

Class BinaryAttribute

Object

org.apache.spark.ml.attribute.Attribute

org.apache.spark.ml.attribute.BinaryAttribute

All Implemented Interfaces:

Serializable, scala.Serializable

public class BinaryAttribute
extends Attribute

A binary attribute. param: name optional name param: index optional index param: values optional values. If set, its size must be 2.

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
AttributeType	attrType()	Attribute type.
static final BinaryAttribute	defaultAttr()	The default binary attribute.
boolean	equals(Object other)
static Attribute	fromStructField(StructField field)
int	hashCode()
scala.Option<Object>	index()	Index of the attribute.
boolean	isNominal()	Tests whether this attribute is nominal, true for NominalAttribute and BinaryAttribute.
boolean	isNumeric()	Tests whether this attribute is numeric, true for NumericAttribute and BinaryAttribute.
scala.Option<String>	name()	Name of the attribute.
scala.Option<String[]>	values()
BinaryAttribute	withIndex(int index)	Copy with a new index.
BinaryAttribute	withName(String name)	Copy with a new name.
BinaryAttribute	withoutIndex()	Copy without the index.
BinaryAttribute	withoutName()	Copy without the name.
BinaryAttribute	withoutValues()	Copy without the values.
BinaryAttribute	withValues(String negative, String positive)	Copy with new values.

Methods inherited from class org.apache.spark.ml.attribute.Attribute

toMetadata, toMetadata, toString, toStructField, toStructField

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Details

defaultAttr

public static final BinaryAttribute defaultAttr()

The default binary attribute.

fromStructField

public static Attribute fromStructField(StructField field)

name

public scala.Option<String> name()

Description copied from class: Attribute

Name of the attribute. None if it is not set.

Specified by:

name in class Attribute

index

public scala.Option<Object> index()

Description copied from class: Attribute

Index of the attribute. None if it is not set.

Specified by:

index in class Attribute

values

public scala.Option<String[]> values()

attrType

public AttributeType attrType()

Description copied from class: Attribute

Attribute type.

Specified by:

attrType in class Attribute

isNumeric

public boolean isNumeric()

Description copied from class: Attribute

Tests whether this attribute is numeric, true for NumericAttribute and BinaryAttribute.

Specified by:

isNumeric in class Attribute

Returns:

(undocumented)

isNominal

public boolean isNominal()

Description copied from class: Attribute

Tests whether this attribute is nominal, true for NominalAttribute and BinaryAttribute.

Specified by:

isNominal in class Attribute

Returns:

(undocumented)

withName

public BinaryAttribute withName(String name)

Description copied from class: Attribute

Copy with a new name.

Specified by:

withName in class Attribute

withoutName

public BinaryAttribute withoutName()

Description copied from class: Attribute

Copy without the name.

Specified by:

withoutName in class Attribute

withIndex

public BinaryAttribute withIndex(int index)

Description copied from class: Attribute

Copy with a new index.

Specified by:

withIndex in class Attribute

withoutIndex

public BinaryAttribute withoutIndex()

Description copied from class: Attribute

Copy without the index.

Specified by:

withoutIndex in class Attribute

withValues

public BinaryAttribute withValues(String negative,
 String positive)

Copy with new values.

Parameters:

negative - name for negative

positive - name for positive

Returns:

(undocumented)

withoutValues

public BinaryAttribute withoutValues()

Copy without the values.

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object