jsat.regression.evaluation

Class TotalHistoryRegressionScore

java.lang.Object

jsat.regression.evaluation.TotalHistoryRegressionScore

All Implemented Interfaces:

Serializable, RegressionScore

Direct Known Subclasses:

CoefficientOfDetermination, RelativeAbsoluteError, RelativeSquaredError

public abstract class TotalHistoryRegressionScore
extends Object
implements RegressionScore

This abstract class provides the work for maintaining the history of predictions and their true values.

Author:

Edward Raff

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected DoubleList	predictions List of the predict values for each target
protected DoubleList	truths List of the true target values
protected DoubleList	weights The weight of importance for each point

Constructor Summary

Constructors

Constructor and Description
TotalHistoryRegressionScore()
TotalHistoryRegressionScore(TotalHistoryRegressionScore toCopy) Copy constructor

Method Summary

Modifier and Type	Method and Description
void	addResult(double prediction, double trueValue, double weight) Adds the given result to the score
void	addResults(RegressionScore other) The score contained in this object is augmented with the results already accumulated in the other object.
abstract TotalHistoryRegressionScore	clone()
void	prepare()

Methods inherited from class java.lang.Object

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

Methods inherited from interface jsat.regression.evaluation.RegressionScore

equals, getName, getScore, hashCode, lowerIsBetter

Field Detail

truths

protected DoubleList truths

List of the true target values

predictions

protected DoubleList predictions

List of the predict values for each target

weights

protected DoubleList weights

The weight of importance for each point

Constructor Detail

TotalHistoryRegressionScore

public TotalHistoryRegressionScore()

TotalHistoryRegressionScore

public TotalHistoryRegressionScore(TotalHistoryRegressionScore toCopy)

Copy constructor

Parameters:

toCopy - the object to copy

Method Detail

prepare

public void prepare()

Specified by:

prepare in interface RegressionScore

addResult

public void addResult(double prediction,
                      double trueValue,
                      double weight)

Description copied from interface: RegressionScore

Adds the given result to the score

Specified by:

addResult in interface RegressionScore

Parameters:

prediction - the prediction for the data point

trueValue - the true value for the data point

weight - the weigh to assign to the data point

addResults

public void addResults(RegressionScore other)

Description copied from interface: RegressionScore

The score contained in this object is augmented with the results already accumulated in the other object. This does not result in an averaging, but alters the current object to have the same score it would have had if all the results were originally inserted into this object.

This method is only required to work if other if of the same class as this object.

Specified by:

addResults in interface RegressionScore

Parameters:

other - the object to add the results from

clone

public abstract TotalHistoryRegressionScore clone()

Specified by:

clone in interface RegressionScore

Overrides:

clone in class Object