org.tribuo.common.xgboost

Class XGBoostFeatureImportance.XGBoostFeatureImportanceInstance

java.lang.Object

org.tribuo.common.xgboost.XGBoostFeatureImportance.XGBoostFeatureImportanceInstance

Enclosing class:

XGBoostFeatureImportance

public static class XGBoostFeatureImportance.XGBoostFeatureImportanceInstance
extends Object

An instance of feature importance values for a single feature. See XGBoostFeatureImportance for details on interpreting the metrics.

Method Summary

Modifier and Type	Method and Description
double	getCover() The number of examples a feature discriminates between.
String	getFeatureName() The feature name.
double	getGain() The information gain a feature provides when split on.
double	getTotalCover() The total number of examples a feature discrimnates between.
double	getTotalGain() The total gain across all times the feature is used to split.
double	getWeight() The number of times a feature is used in the model.
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getFeatureName

public String getFeatureName()

The feature name.

Returns:

The feature name.

getGain

public double getGain()

The information gain a feature provides when split on.

Returns:

The gain.

getCover

public double getCover()

The number of examples a feature discriminates between.

Returns:

The cover.

getWeight

public double getWeight()

The number of times a feature is used in the model.

Returns:

The number of times the feature is used to split.

getTotalGain

public double getTotalGain()

The total gain across all times the feature is used to split.

Returns:

The total gain.

getTotalCover

public double getTotalCover()

The total number of examples a feature discrimnates between.

Returns:

The total cover.

toString

public String toString()

Overrides:

toString in class Object