Trait

org.apache.spark.mllib.linalg

Vector

Related Doc: package linalg

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sealed trait Vector extends Serializable

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

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@SQLUserDefinedType() @Since( "1.0.0" )
Note

Users should not implement this interface.

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Serializable, Serializable, AnyRef, Any
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Abstract Value Members

  1. abstract def argmax: Int

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    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 asML: ml.linalg.Vector

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    Convert this vector to the new mllib-local representation.

    Convert this vector to the new mllib-local representation. This does NOT copy the data; it copies references.

    Annotations
    @Since( "2.0.0" )
  3. abstract def foreachActive(f: (Int, Double) ⇒ Unit): Unit

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    Applies a function f to all the active elements of dense and sparse vector.

    Applies a function f to all the active elements of dense and sparse vector.

    f

    the function takes two parameters where the first parameter is the index of the vector with type Int, and the second parameter is the corresponding value with type Double.

    Annotations
    @Since( "1.6.0" )
  4. abstract def numActives: Int

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    Number of active entries.

    Number of active entries. An "active entry" is an element which is explicitly stored, regardless of its value.

    Annotations
    @Since( "1.4.0" )
    Note

    Inactive entries have value 0.

  5. abstract def numNonzeros: Int

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    Number of nonzero elements.

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

    Annotations
    @Since( "1.4.0" )
  6. abstract def size: Int

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    Size of the vector.

    Size of the vector.

    Annotations
    @Since( "1.0.0" )
  7. abstract def toArray: Array[Double]

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    Converts the instance to a double array.

    Converts the instance to a double array.

    Annotations
    @Since( "1.0.0" )
  8. abstract def toJson: String

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    Converts the vector to a JSON string.

    Converts the vector to a JSON string.

    Annotations
    @Since( "1.6.0" )

Concrete 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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    AnyRef → Any
  4. def apply(i: Int): Double

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    Gets the value of the ith element.

    Gets the value of the ith element.

    i

    index

    Annotations
    @Since( "1.1.0" )
  5. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  6. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
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    @throws( ... )
  7. def compressed: Vector

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    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" )
  8. def copy: Vector

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    Makes a deep copy of this vector.

    Makes a deep copy of this vector.

    Annotations
    @Since( "1.1.0" )
  9. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  10. def equals(other: Any): Boolean

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

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

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

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    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 first 128 nonzero entries, using a hash algorithm similar to java.util.Arrays.hashCode.

    Definition Classes
    Vector → AnyRef → Any
  14. final def isInstanceOf[T0]: Boolean

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

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

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

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

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    Definition Classes
    AnyRef
  19. def toDense: DenseVector

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    Converts this vector to a dense vector.

    Converts this vector to a dense vector.

    Annotations
    @Since( "1.4.0" )
  20. def toSparse: SparseVector

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    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" )
  21. def toString(): String

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

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

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

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    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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