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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 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 util
    Definition Classes
    mllib
  • DataValidators
  • KMeansDataGenerator
  • LinearDataGenerator
  • Loader
  • LogisticRegressionDataGenerator
  • MFDataGenerator
  • MLUtils
  • SVMDataGenerator
  • Saveable
o

org.apache.spark.mllib.util

DataValidators

object DataValidators extends Logging

A collection of methods used to validate data before applying ML algorithms.

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@Since( "0.8.0" )
Source
DataValidators.scala
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  4. final def asInstanceOf[T0]: T0
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  5. val binaryLabelValidator: (RDD[LabeledPoint]) ⇒ Boolean

    Function to check if labels used for classification are either zero or one.

    Function to check if labels used for classification are either zero or one.

    returns

    True if labels are all zero or one, false otherwise.

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    @Since( "1.0.0" )
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  11. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
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  12. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
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  13. final def isInstanceOf[T0]: Boolean
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  14. def isTraceEnabled(): Boolean
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  15. def log: Logger
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  16. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
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  17. def logDebug(msg: ⇒ String): Unit
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  18. def logError(msg: ⇒ String, throwable: Throwable): Unit
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  19. def logError(msg: ⇒ String): Unit
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  20. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
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  21. def logInfo(msg: ⇒ String): Unit
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  22. def logName: String
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  23. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
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  24. def logTrace(msg: ⇒ String): Unit
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  25. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
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  26. def logWarning(msg: ⇒ String): Unit
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  27. def multiLabelValidator(k: Int): (RDD[LabeledPoint]) ⇒ Boolean

    Function to check if labels used for k class multi-label classification are in the range of {0, 1, ..., k - 1}.

    Function to check if labels used for k class multi-label classification are in the range of {0, 1, ..., k - 1}.

    returns

    True if labels are all in the range of {0, 1, ..., k-1}, false otherwise.

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    @Since( "1.3.0" )
  28. final def ne(arg0: AnyRef): Boolean
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  29. final def notify(): Unit
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