Packages

  • package root
    Definition Classes
    root
  • package org
    Definition Classes
    root
  • package apache
    Definition Classes
    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 mllib

    RDD-based machine learning APIs (in maintenance mode).

    RDD-based machine learning APIs (in maintenance mode).

    The spark.mllib package is in maintenance mode as of the Spark 2.0.0 release to encourage migration to the DataFrame-based APIs under the org.apache.spark.ml package. While in maintenance mode,

    • no new features in the RDD-based spark.mllib package will be accepted, unless they block implementing new features in the DataFrame-based spark.ml package;
    • bug fixes in the RDD-based APIs will still be accepted.

    The developers will continue adding more features to the DataFrame-based APIs in the 2.x series to reach feature parity with the RDD-based APIs. And once we reach feature parity, this package will be deprecated.

    Definition Classes
    spark
    See also

    SPARK-4591 to track the progress of feature parity

  • package fpm
    Definition Classes
    mllib
  • AssociationRules
  • FPGrowth
  • FPGrowthModel
  • PrefixSpan
  • PrefixSpanModel

class FPGrowthModel[Item] extends Saveable with Serializable

Model trained by FPGrowth, which holds frequent itemsets.

Item

item type

Annotations
@Since("1.3.0")
Source
FPGrowth.scala
Linear Supertypes
Serializable, Saveable, AnyRef, Any
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Inherited
  1. FPGrowthModel
  2. Serializable
  3. Saveable
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new FPGrowthModel(freqItemsets: RDD[FreqItemset[Item]])(implicit arg0: ClassTag[Item])
    Annotations
    @Since("1.3.0")
  2. new FPGrowthModel(freqItemsets: RDD[FreqItemset[Item]], itemSupport: Map[Item, Double])(implicit arg0: ClassTag[Item])

    freqItemsets

    frequent itemset, which is an RDD of FreqItemset

    Annotations
    @Since("2.4.0")

Value Members

  1. val freqItemsets: RDD[FreqItemset[Item]]
    Annotations
    @Since("1.3.0")
  2. def generateAssociationRules(confidence: Double): RDD[Rule[Item]]

    Generates association rules for the Items in freqItemsets.

    Generates association rules for the Items in freqItemsets.

    confidence

    minimal confidence of the rules produced

    Annotations
    @Since("1.5.0")
  3. val itemSupport: Map[Item, Double]
    Annotations
    @Since("2.4.0")
  4. def save(sc: SparkContext, path: String): Unit

    Save this model to the given path.

    Save this model to the given path. It only works for Item datatypes supported by DataFrames.

    This saves:

    • human-readable (JSON) model metadata to path/metadata/
    • Parquet formatted data to path/data/

    The model may be loaded using FPGrowthModel.load.

    sc

    Spark context used to save model data.

    path

    Path specifying the directory in which to save this model. If the directory already exists, this method throws an exception.

    Definition Classes
    FPGrowthModel → Saveable
    Annotations
    @Since("2.0.0")