Class

org.apache.spark.mllib.tree.model

Node

Related Doc: package model

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class Node extends Serializable with Logging

:: DeveloperApi :: Node in a decision tree.

About node indexing: Nodes are indexed from 1. Node 1 is the root; nodes 2, 3 are the left, right children. Node index 0 is not used.

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@Since( "1.0.0" ) @DeveloperApi()
Linear Supertypes
Logging, Serializable, Serializable, AnyRef, Any
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  1. Node
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Instance Constructors

  1. new Node(id: Int, predict: Predict, impurity: Double, isLeaf: Boolean, split: Option[Split], leftNode: Option[Node], rightNode: Option[Node], stats: Option[InformationGainStats])

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    id

    integer node id, from 1

    predict

    predicted value at the node

    impurity

    current node impurity

    isLeaf

    whether the node is a leaf

    split

    split to calculate left and right nodes

    leftNode

    left child

    rightNode

    right child

    stats

    information gain stats

    Annotations
    @Since( "1.2.0" )

Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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    Attributes
    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]

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  10. def hashCode(): Int

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    AnyRef → Any
  11. val id: Int

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    integer node id, from 1

    integer node id, from 1

    Annotations
    @Since( "1.0.0" )
  12. var impurity: Double

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    current node impurity

    current node impurity

    Annotations
    @Since( "1.2.0" )
  13. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean = false): Boolean

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    Attributes
    protected
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    Logging
  14. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    protected
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    Logging
  15. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  16. var isLeaf: Boolean

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    whether the node is a leaf

    whether the node is a leaf

    Annotations
    @Since( "1.0.0" )
  17. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  18. var leftNode: Option[Node]

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    left child

    left child

    Annotations
    @Since( "1.0.0" )
  19. def log: Logger

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    Attributes
    protected
    Definition Classes
    Logging
  20. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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    protected
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    Logging
  21. def logDebug(msg: ⇒ String): Unit

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    protected
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    Logging
  22. def logError(msg: ⇒ String, throwable: Throwable): Unit

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    protected
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    Logging
  23. def logError(msg: ⇒ String): Unit

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    protected
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    Logging
  24. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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    protected
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    Logging
  25. def logInfo(msg: ⇒ String): Unit

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    protected
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    Logging
  26. def logName: String

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    protected
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    Logging
  27. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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    protected
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    Logging
  28. def logTrace(msg: ⇒ String): Unit

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    protected
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    Logging
  29. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
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    Logging
  30. def logWarning(msg: ⇒ String): Unit

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    protected
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    Logging
  31. final def ne(arg0: AnyRef): Boolean

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    AnyRef
  32. final def notify(): Unit

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    AnyRef
  33. final def notifyAll(): Unit

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    AnyRef
  34. def predict(features: Vector): Double

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    predict value if node is not leaf

    predict value if node is not leaf

    features

    feature value

    returns

    predicted value

    Annotations
    @Since( "1.1.0" )
  35. var predict: Predict

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    predicted value at the node

    predicted value at the node

    Annotations
    @Since( "1.0.0" )
  36. var rightNode: Option[Node]

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    right child

    right child

    Annotations
    @Since( "1.0.0" )
  37. var split: Option[Split]

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    split to calculate left and right nodes

    split to calculate left and right nodes

    Annotations
    @Since( "1.0.0" )
  38. var stats: Option[InformationGainStats]

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    information gain stats

    information gain stats

    Annotations
    @Since( "1.0.0" )
  39. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  40. def toString(): String

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    Definition Classes
    Node → AnyRef → Any
  41. final def wait(): Unit

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    @throws( ... )
  42. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )
  43. final def wait(arg0: Long): Unit

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    @throws( ... )

Inherited from Logging

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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