| Name | Description | Type | Package | Framework |
| Entropy | Class for calculating entropy during binary classification. | Class | org.apache.spark.mllib.tree.impurity | Apache Spark |
| Gini | Class for calculating the during binary classification. | Class | org.apache.spark.mllib.tree.impurity | Apache Spark |
| Impurity | Trait for calculating information gain. | Interface | org.apache.spark.mllib.tree.impurity | Apache Spark |
| Variance | Class for calculating variance during regressionSee Also:Serialized Form | Class | org.apache.spark.mllib.tree.impurity | Apache Spark |