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

- Packages that use org.apache.ignite.ml.tree.impurity.gini
  Package | Description
  --- | ---
  org.apache.ignite.ml.tree | Root package for decision trees.
  org.apache.ignite.ml.tree.impurity.gini | Contains Gini impurity measure and calculator.

- Classes in org.apache.ignite.ml.tree.impurity.gini used by org.apache.ignite.ml.tree
  Class and Description
  GiniImpurityMeasure Gini impurity measure which is calculated the following way: `\-frac{1}{L}\sum_{i=1}^{s}l_i^2 - \frac{1}{R}\sum_{i=s+1}^{n}r_i^2`.

- Classes in org.apache.ignite.ml.tree.impurity.gini used by org.apache.ignite.ml.tree.impurity.gini
  Class and Description
  GiniImpurityMeasure Gini impurity measure which is calculated the following way: `\-frac{1}{L}\sum_{i=1}^{s}l_i^2 - \frac{1}{R}\sum_{i=s+1}^{n}r_i^2`.

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