Package org.apache.spark.ml.attribute

Class NumericAttribute

Object

org.apache.spark.ml.attribute.Attribute

org.apache.spark.ml.attribute.NumericAttribute

All Implemented Interfaces:

Serializable

public class NumericAttribute
extends Attribute

A numeric attribute with optional summary statistics. param: name optional name param: index optional index param: min optional min value param: max optional max value param: std optional standard deviation param: sparsity optional sparsity (ratio of zeros)

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
AttributeType	attrType()	Attribute type.
static NumericAttribute	defaultAttr()	The default numeric 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<Object>	max()
scala.Option<Object>	min()
scala.Option<String>	name()	Name of the attribute.
scala.Option<Object>	sparsity()
scala.Option<Object>	std()
NumericAttribute	withIndex(int index)	Copy with a new index.
NumericAttribute	withMax(double max)	Copy with a new max value.
NumericAttribute	withMin(double min)	Copy with a new min value.
NumericAttribute	withName(String name)	Copy with a new name.
NumericAttribute	withoutIndex()	Copy without the index.
NumericAttribute	withoutMax()	Copy without the max value.
NumericAttribute	withoutMin()	Copy without the min value.
NumericAttribute	withoutName()	Copy without the name.
NumericAttribute	withoutSparsity()	Copy without the sparsity.
NumericAttribute	withoutStd()	Copy without the standard deviation.
NumericAttribute	withoutSummary()	Copy without summary statistics.
NumericAttribute	withSparsity(double sparsity)	Copy with a new sparsity.
NumericAttribute	withStd(double std)	Copy with a new standard deviation.

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 NumericAttribute defaultAttr()

The default numeric 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

min

public scala.Option<Object> min()

max

public scala.Option<Object> max()

std

public scala.Option<Object> std()

sparsity

public scala.Option<Object> sparsity()

attrType

public AttributeType attrType()

Description copied from class: Attribute

Attribute type.

Specified by:

attrType in class Attribute

withName

public NumericAttribute withName(String name)

Description copied from class: Attribute

Copy with a new name.

Specified by:

withName in class Attribute

withoutName

public NumericAttribute withoutName()

Description copied from class: Attribute

Copy without the name.

Specified by:

withoutName in class Attribute

withIndex

public NumericAttribute withIndex(int index)

Description copied from class: Attribute

Copy with a new index.

Specified by:

withIndex in class Attribute

withoutIndex

public NumericAttribute withoutIndex()

Description copied from class: Attribute

Copy without the index.

Specified by:

withoutIndex in class Attribute

withMin

public NumericAttribute withMin(double min)

Copy with a new min value.

withoutMin

public NumericAttribute withoutMin()

Copy without the min value.

withMax

public NumericAttribute withMax(double max)

Copy with a new max value.

withoutMax

public NumericAttribute withoutMax()

Copy without the max value.

withStd

public NumericAttribute withStd(double std)

Copy with a new standard deviation.

withoutStd

public NumericAttribute withoutStd()

Copy without the standard deviation.

withSparsity

public NumericAttribute withSparsity(double sparsity)

Copy with a new sparsity.

withoutSparsity

public NumericAttribute withoutSparsity()

Copy without the sparsity.

withoutSummary

public NumericAttribute withoutSummary()

Copy without summary statistics.

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)

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object