org.apache.spark.mllib.tree.model

Node

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.

Annotations
@Since( "1.0.0" ) @DeveloperApi()
Source
Node.scala
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Logging, Serializable, Serializable, AnyRef, Any
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  1. Node
  2. Logging
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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])

    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: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  7. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  9. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  10. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  11. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  12. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  13. val id: Int

    integer node id, from 1

    integer node id, from 1

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

    current node impurity

    current node impurity

    Annotations
    @Since( "1.2.0" )
  15. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  16. var isLeaf: Boolean

    whether the node is a leaf

    whether the node is a leaf

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

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

    left child

    left child

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

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

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

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

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

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

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

    Attributes
    protected
    Definition Classes
    Logging
  26. def logName: String

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

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

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

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

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

    Definition Classes
    AnyRef
  32. final def notify(): Unit

    Definition Classes
    AnyRef
  33. final def notifyAll(): Unit

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

    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

    predicted value at the node

    predicted value at the node

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

    right child

    right child

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

    split to calculate left and right nodes

    split to calculate left and right nodes

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

    information gain stats

    information gain stats

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

    Definition Classes
    AnyRef
  40. def toString(): String

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  43. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Deprecated Value Members

  1. def build(nodes: Array[Node]): Unit

    build the left node and right nodes if not leaf

    build the left node and right nodes if not leaf

    nodes

    array of nodes

    Annotations
    @Since( "1.0.0" ) @deprecated
    Deprecated

    (Since version 1.2.0) build should no longer be used since trees are constructed on-the-fly in training

Inherited from Logging

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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