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package root
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root
package org
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root
package apache
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org
package spark
Core Spark functionality.
Core Spark functionality. org.apache.spark.SparkContext serves as the main entry point to Spark, while org.apache.spark.rdd.RDD is the data type representing a distributed collection, and provides most parallel operations.
In addition, org.apache.spark.rdd.PairRDDFunctions contains operations available only on RDDs of key-value pairs, such as groupByKey and join; org.apache.spark.rdd.DoubleRDDFunctions contains operations available only on RDDs of Doubles; and org.apache.spark.rdd.SequenceFileRDDFunctions contains operations available on RDDs that can be saved as SequenceFiles. These operations are automatically available on any RDD of the right type (e.g. RDD[(Int, Int)] through implicit conversions.
Java programmers should reference the org.apache.spark.api.java package for Spark programming APIs in Java.
Classes and methods marked with Experimental are user-facing features which have not been officially adopted by the Spark project. These are subject to change or removal in minor releases.
Classes and methods marked with Developer API are intended for advanced users want to extend Spark through lower level interfaces. These are subject to changes or removal in minor releases.
Definition Classes
apache
package ml
DataFrame-based machine learning APIs to let users quickly assemble and configure practical machine learning pipelines.
DataFrame-based machine learning APIs to let users quickly assemble and configure practical machine learning pipelines.
Definition Classes
spark
package evaluation
Definition Classes
ml
BinaryClassificationEvaluator
ClusteringEvaluator
ClusteringMetrics
Evaluator
MulticlassClassificationEvaluator
MultilabelClassificationEvaluator
RankingEvaluator
RegressionEvaluator

org.apache.spark.ml.evaluation

ClusteringMetrics

class ClusteringMetrics extends AnyRef

Metrics for clustering, which expects two input columns: prediction and label.

Annotations: @Since("3.1.0")
Source: ClusteringMetrics.scala

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def setDistanceMeasure(value: String): ClusteringMetrics.this.type
def silhouette(): Double
Returns the silhouette score
Returns the silhouette score
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Deprecated
(Since version 9)

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ClusteringMetrics

class ClusteringMetrics extends AnyRef

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ClusteringMetrics

class ClusteringMetrics extends AnyRef

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ClusteringMetrics