smile.validation.metric

Class Fallout

java.lang.Object

smile.validation.metric.Fallout

All Implemented Interfaces:

java.io.Serializable, ClassificationMetric

public class Fallout
extends java.lang.Object
implements ClassificationMetric

Fall-out, false alarm rate, or false positive rate (FPR)

     FPR = FP / N = FP / (FP + TN)
 

Fall-out is actually Type I error and closely related to specificity (1 - specificity).

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Fallout	instance Default instance.

Constructor Summary

Constructors

Constructor and Description
Fallout()

Method Summary

Modifier and Type	Method and Description
static double	of(int[] truth, int[] prediction) Calculates the false alarm rate.
double	score(int[] truth, int[] prediction) Returns a score to measure the quality of classification.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

instance

public static final Fallout instance

Default instance.

Constructor Detail

Fallout

public Fallout()

Method Detail

score

public double score(int[] truth,
                    int[] prediction)

Description copied from interface: ClassificationMetric

Returns a score to measure the quality of classification.

Specified by:

score in interface ClassificationMetric

Parameters:

truth - the true class labels.

prediction - the predicted class labels.

of

public static double of(int[] truth,
                        int[] prediction)

Calculates the false alarm rate.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object