smile.validation

Class Fallout

java.lang.Object

smile.validation.Fallout

All Implemented Interfaces:

ClassificationMeasure

public class Fallout
extends java.lang.Object
implements ClassificationMeasure

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).

Field Summary

Fields

Modifier and Type	Field and Description
static Fallout	instance

Constructor Summary

Constructors

Constructor and Description
Fallout()

Method Summary

Modifier and Type	Method and Description
double	measure(int[] truth, int[] prediction) Returns an index to measure the quality of classification.
static double	of(int[] truth, int[] prediction) Calculates the false alarm rate.
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

Constructor Detail

Fallout

public Fallout()

Method Detail

measure

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

Description copied from interface: ClassificationMeasure

Returns an index to measure the quality of classification.

Specified by:

measure in interface ClassificationMeasure

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