org.apache.spark.mllib.evaluation.binary

Class FMeasure

Object

org.apache.spark.mllib.evaluation.binary.FMeasure

All Implemented Interfaces:

java.io.Serializable, BinaryClassificationMetricComputer, scala.Equals, scala.Product

public class FMeasure
extends Object
implements BinaryClassificationMetricComputer, scala.Product, scala.Serializable

F-Measure. Defined as 0 if both precision and recall are 0. EG in the case that all examples are false positives.

See Also:

http://en.wikipedia.org/wiki/F1_score, Serialized Form

Constructor Summary

Constructors

Constructor and Description
FMeasure(double beta)

Method Summary

Methods

Modifier and Type	Method and Description
double	apply(BinaryConfusionMatrix c)
double	beta()

Methods inherited from class Object

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

Methods inherited from interface scala.Product

productArity, productElement, productIterator, productPrefix

Methods inherited from interface scala.Equals

canEqual, equals

Constructor Detail

FMeasure

public FMeasure(double beta)

Method Detail

beta

public double beta()

apply

public double apply(BinaryConfusionMatrix c)

Specified by:

apply in interface BinaryClassificationMetricComputer