org.apache.ignite.ml.tree.randomforest.data.impurity

## Interface ImpurityComputer<T,H extends Histogram<T,H>>

- Type Parameters:
    `T` - Base object type for histogram.
    `H` - Type of histogram that can be used in math operations with this object.
  All Superinterfaces:
    Histogram<T,H>, Serializable
  All Known Implementing Classes:
    GiniHistogram, MSEHistogram

      public interface ImpurityComputer<T,H extends Histogram<T,H>>
      extends Histogram<T,H>

  Interface represents an object that can compute best splitting point using features histograms.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `Optional<NodeSplit>` | `findBestSplit()` Returns best split point computed on histogram if it exists.

    - ### Methods inherited from interface org.apache.ignite.ml.dataset.feature.Histogram

      `addElement, buckets, getValue, isEqualTo, plus`

- - ### Method Detail

    - #### findBestSplit

          Optional<NodeSplit> findBestSplit()

      Returns best split point computed on histogram if it exists. Split point may be absent when there is no data in histograms or split point lay in last bucket in histogram.
      Returns:
        Splitting point for decision tree.

2020 Copyright © Apache Software Foundation
| Follow @ApacheIgnite
Ignite Database and Caching Platform | : ver. 2.9.1
Release Date | : December 9 2020