# Uses of Package
org.apache.ignite.ml.tree.impurity

- Packages that use org.apache.ignite.ml.tree.impurity
  Package | Description
  --- | ---
  org.apache.ignite.ml.tree | Root package for decision trees.
  org.apache.ignite.ml.tree.impurity | Root package for decision tree impurity measures and calculators.
  org.apache.ignite.ml.tree.impurity.gini | Contains Gini impurity measure and calculator.
  org.apache.ignite.ml.tree.impurity.mse | Contains mean squared error impurity measure and calculator.
  org.apache.ignite.ml.tree.impurity.util | Contains util classes used in decision tree impurity calculators.

- Classes in org.apache.ignite.ml.tree.impurity used by org.apache.ignite.ml.tree
  Class and Description
  ImpurityMeasure Base interface for impurity measures that can be used in distributed decision tree algorithm.
  ImpurityMeasureCalculator Base interface for impurity measure calculators that calculates all impurity measures required to find a best split.

- Classes in org.apache.ignite.ml.tree.impurity used by org.apache.ignite.ml.tree.impurity
  Class and Description
  ImpurityMeasure Base interface for impurity measures that can be used in distributed decision tree algorithm.

- Classes in org.apache.ignite.ml.tree.impurity used by org.apache.ignite.ml.tree.impurity.gini
  Class and Description
  ImpurityMeasure Base interface for impurity measures that can be used in distributed decision tree algorithm.
  ImpurityMeasureCalculator Base interface for impurity measure calculators that calculates all impurity measures required to find a best split.

- Classes in org.apache.ignite.ml.tree.impurity used by org.apache.ignite.ml.tree.impurity.mse
  Class and Description
  ImpurityMeasure Base interface for impurity measures that can be used in distributed decision tree algorithm.
  ImpurityMeasureCalculator Base interface for impurity measure calculators that calculates all impurity measures required to find a best split.

- Classes in org.apache.ignite.ml.tree.impurity used by org.apache.ignite.ml.tree.impurity.util
  Class and Description
  ImpurityMeasure Base interface for impurity measures that can be used in distributed decision tree algorithm.

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Ignite Database and Caching Platform | : ver. 2.9.1
Release Date | : December 9 2020