org.apache.spark.mllib.tree.impurity

Variance

object Variance extends Impurity

:: Experimental :: Class for calculating variance during regression

Annotations
@Since( "1.0.0" ) @Experimental()
Linear Supertypes
Impurity, Serializable, Serializable, AnyRef, Any
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. Variance
  2. Impurity
  3. Serializable
  4. Serializable
  5. AnyRef
  6. Any
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

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 calculate(count: Double, sum: Double, sumSquares: Double): Double

    :: DeveloperApi :: variance calculation

    :: DeveloperApi :: variance calculation

    count

    number of instances

    sum

    sum of labels

    sumSquares

    summation of squares of the labels

    returns

    information value, or 0 if count = 0

    Definition Classes
    VarianceImpurity
    Annotations
    @Since( "1.0.0" ) @DeveloperApi()
  8. def calculate(counts: Array[Double], totalCount: Double): Double

    :: DeveloperApi :: information calculation for multiclass classification

    :: DeveloperApi :: information calculation for multiclass classification

    counts

    Array[Double] with counts for each label

    totalCount

    sum of counts for all labels

    returns

    information value, or 0 if totalCount = 0

    Definition Classes
    VarianceImpurity
    Annotations
    @Since( "1.1.0" ) @DeveloperApi()
  9. def clone(): AnyRef

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

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

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

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

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

    Definition Classes
    AnyRef → Any
  15. def instance: Variance.this.type

    Get this impurity instance.

    Get this impurity instance. This is useful for passing impurity parameters to a Strategy in Java.

    Annotations
    @Since( "1.0.0" )
  16. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  17. final def ne(arg0: AnyRef): Boolean

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

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

    Definition Classes
    AnyRef
  20. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  21. def toString(): String

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

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Impurity

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped