TransformsCatalog.FeatureSelectionTransforms 类

定义

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

用于 MLContext 创建功能选择转换组件的实例的类。

public sealed class TransformsCatalog.FeatureSelectionTransforms

type TransformsCatalog.FeatureSelectionTransforms = class

Public NotInheritable Class TransformsCatalog.FeatureSelectionTransforms

SelectFeaturesBasedOnCount(TransformsCatalog+FeatureSelectionTransforms, InputOutputColumnPair[], Int64)	创建一个 CountFeatureSelectingEstimator，它选择非默认值计数大于或等于阈值的槽。
SelectFeaturesBasedOnCount(TransformsCatalog+FeatureSelectionTransforms, String, String, Int64)	创建一个 CountFeatureSelectingEstimator，它选择非默认值计数大于或等于阈值的槽。
SelectFeaturesBasedOnMutualInformation(TransformsCatalog+FeatureSelectionTransforms, InputOutputColumnPair[], String, Int32, Int32)	创建一个 MutualInformationFeatureSelectingEstimator，它选择所有指定列的顶部 k 槽，其相互信息与标签列排序。
SelectFeaturesBasedOnMutualInformation(TransformsCatalog+FeatureSelectionTransforms, String, String, String, Int32, Int32)	创建一个 MutualInformationFeatureSelectingEstimator，它选择所有指定列的顶部 k 槽，其相互信息与标签列排序。