# Package org.apache.ignite.ml.tree.impurity.util

Contains util classes used in decision tree impurity calculators.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  StepFunctionCompressor<T extends ImpurityMeasure<T>> | Base interface for step function compressors which reduces step function size.

- Class Summary
  Class | Description
  --- | ---
  SimpleStepFunctionCompressor<T extends ImpurityMeasure<T>> | Simple step function compressor.
  StepFunction<T extends ImpurityMeasure<T>> | Step function described by `x` and `y` points.

## Package org.apache.ignite.ml.tree.impurity.util Description

Contains util classes used in decision tree impurity calculators.

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Ignite Database and Caching Platform | : ver. 2.12.0
Release Date | : January 10 2022