Package smile.validation.metric

Class Error

java.lang.Object

smile.validation.metric.Error

All Implemented Interfaces:

Serializable, ToDoubleBiFunction<int[],int[]>, ClassificationMetric

public class Error
extends Object
implements ClassificationMetric

The number of errors in the population.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final Error	instance	Default instance.

Constructor Summary

Constructors

Constructor	Description
Error()

Method Summary

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface smile.validation.metric.ClassificationMetric

applyAsDouble

Field Details

instance

public static final Error instance

Default instance.

Constructor Details

Error

public Error()

Method Details

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.

Returns:

the metric.

of

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

Calculates the number of errors.

Parameters:

truth - the ground truth.

prediction - the prediction.

Returns:

the metric.

toString

public String toString()

Overrides:

toString in class Object