org.apache.spark.mllib.linalg

Vector

sealed trait Vector extends Serializable

Represents a numeric vector, whose index type is Int and value type is Double.

Note: Users should not implement this interface.

Annotations
@SQLUserDefinedType() @Since( "1.0.0" )
Linear Supertypes
Serializable, Serializable, AnyRef, Any
Known Subclasses
DenseVector, SparseVector
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  1. Vector
  2. Serializable
  3. Serializable
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  1. Public
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Abstract Value Members

  1. abstract def argmax: Int

    Find the index of a maximal element.

    Find the index of a maximal element. Returns the first maximal element in case of a tie. Returns -1 if vector has length 0.

    Annotations
    @Since( "1.5.0" )

  2. abstract def numActives: Int

    Number of active entries.

    Number of active entries. An "active entry" is an element which is explicitly stored, regardless of its value. Note that inactive entries have value 0.

    Annotations
    @Since( "1.4.0" )

  3. abstract def numNonzeros: Int

    Number of nonzero elements.

    Number of nonzero elements. This scans all active values and count nonzeros.

    Annotations
    @Since( "1.4.0" )

  4. abstract def size: Int

    Size of the vector.

    Size of the vector.

    Annotations
    @Since( "1.0.0" )

  5. abstract def toArray: Array[Double]

    Converts the instance to a double array.

    Converts the instance to a double array.

    Annotations
    @Since( "1.0.0" )

  6. abstract def toSparse: SparseVector

    Converts this vector to a sparse vector with all explicit zeros removed.

    Converts this vector to a sparse vector with all explicit zeros removed.

    Annotations
    @Since( "1.4.0" )

Concrete 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. def apply(i: Int): Double

    Gets the value of the ith element.

    Gets the value of the ith element.

    i

    index

    Annotations
    @Since( "1.1.0" )

  7. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  8. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  9. def compressed: Vector

    Returns a vector in either dense or sparse format, whichever uses less storage.

    Returns a vector in either dense or sparse format, whichever uses less storage.

    Annotations
    @Since( "1.4.0" )

  10. def copy: Vector

    Makes a deep copy of this vector.

    Makes a deep copy of this vector.

    Annotations
    @Since( "1.1.0" )

  11. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  12. def equals(other: Any): Boolean

    Definition Classes
    Vector → AnyRef → Any

  13. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  14. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  15. def hashCode(): Int

    Returns a hash code value for the vector.

    Returns a hash code value for the vector. The hash code is based on its size and its nonzeros in the first 16 entries, using a hash algorithm similar to java.util.Arrays.hashCode.

    Definition Classes
    Vector → AnyRef → Any

  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 toDense: DenseVector

    Converts this vector to a dense vector.

    Converts this vector to a dense vector.

    Annotations
    @Since( "1.4.0" )

  22. def toString(): String

    Definition Classes
    AnyRef → Any

  23. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  24. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  25. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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