## Uses of Interface
org.apache.ignite.ml.selection.scoring.evaluator.aggregator.MetricStatsAggregator

- Packages that use MetricStatsAggregator
  Package | Description
  --- | ---
  org.apache.ignite.ml.selection.scoring.evaluator.aggregator | Package contains aggregators for metrics computation.
  org.apache.ignite.ml.selection.scoring.metric | Package for metrics.

- - ### Uses of MetricStatsAggregator in org.apache.ignite.ml.selection.scoring.evaluator.aggregator

    Classes in org.apache.ignite.ml.selection.scoring.evaluator.aggregator with type parameters of type MetricStatsAggregator
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `MetricStatsAggregator<L,Ctx,Self extends MetricStatsAggregator<L,Ctx,? super Self>>` Classes with such interface are responsible for metric statistics aggregations used for metric computations over given dataset.

    Classes in org.apache.ignite.ml.selection.scoring.evaluator.aggregator that implement MetricStatsAggregator
    Modifier and Type | Class and Description
    --- | ---
    `class` | `BinaryClassificationPointwiseMetricStatsAggregator<L extends Serializable>` This class represents statistics for pointwise metrics evaluation for binary classification like TruePositive, FalsePositive, TrueNegative and FalseNegative.
    `static class` | `BinaryClassificationPointwiseMetricStatsAggregator.WithCustomLabelsAggregator<L extends Serializable>` Class represents already initialized aggregator.
    `class` | `ClassificationMetricsAggregator<L extends Serializable>` Class represents aggregations for classification metric (including multi-classification case).
    `class` | `RegressionMetricStatsAggregator` Class represents statistics aggregator for regression estimation.

  - ### Uses of MetricStatsAggregator in org.apache.ignite.ml.selection.scoring.metric

    Classes in org.apache.ignite.ml.selection.scoring.metric with type parameters of type MetricStatsAggregator
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `Metric<L,C extends EvaluationContext<L,C>,A extends MetricStatsAggregator<L,C,A>>` This class represents a container with computed value of metric and it provides a factory for metric statistics aggregation class.

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Release Date | : January 10 2022