org.apache.ignite.ml.selection.scoring.metric.regression

Class R2

java.lang.Object

org.apache.ignite.ml.selection.scoring.metric.regression.R2

All Implemented Interfaces:

Serializable, Metric<Double,EmptyContext<Double>,RegressionMetricStatsAggregator>

public class R2
extends Object
implements Metric<Double,EmptyContext<Double>,RegressionMetricStatsAggregator>

Class for coefficient of determination metric.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
R2()

Method Summary

Modifier and Type	Method and Description
R2	initBy(RegressionMetricStatsAggregator aggr) Initializes metric value by statistics aggregator.
RegressionMetricStatsAggregator	makeAggregator() Creates statistics aggregator.
MetricName	name() Returns metric name.
double	value() Returns metric value.

Methods inherited from class java.lang.Object

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

Constructor Detail

R2

public R2()

Method Detail

makeAggregator

public RegressionMetricStatsAggregator makeAggregator()

Creates statistics aggregator.

Specified by:

makeAggregator in interface Metric<Double,EmptyContext<Double>,RegressionMetricStatsAggregator>

Returns:

Statistics aggregator

initBy

public R2 initBy(RegressionMetricStatsAggregator aggr)

Initializes metric value by statistics aggregator.

Specified by:

initBy in interface Metric<Double,EmptyContext<Double>,RegressionMetricStatsAggregator>

Parameters:

aggr - Aggregator.

value

public double value()

Returns metric value.

Specified by:

value in interface Metric<Double,EmptyContext<Double>,RegressionMetricStatsAggregator>

Returns:

Metric value.

name

public MetricName name()

Returns metric name.

Specified by:

name in interface Metric<Double,EmptyContext<Double>,RegressionMetricStatsAggregator>

Returns:

Metric name.