Packages

object Vectors

Factory methods for org.apache.spark.ml.linalg.Vector. We don't use the name Vector because Scala imports scala.collection.immutable.Vector by default.

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@Since( "2.0.0" )
Source
Vectors.scala
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  1. def dense(values: Array[Double]): Vector

    Creates a dense vector from a double array.

    Creates a dense vector from a double array.

    Annotations
    @Since( "2.0.0" )
  2. def dense(firstValue: Double, otherValues: Double*): Vector

    Creates a dense vector from its values.

    Creates a dense vector from its values.

    Annotations
    @varargs() @Since( "2.0.0" )
  3. def norm(vector: Vector, p: Double): Double

    Returns the p-norm of this vector.

    Returns the p-norm of this vector.

    vector

    input vector.

    p

    norm.

    returns

    norm in Lp space.

    Annotations
    @Since( "2.0.0" )
  4. def sparse(size: Int, elements: Iterable[(Integer, Double)]): Vector

    Creates a sparse vector using unordered (index, value) pairs in a Java friendly way.

    Creates a sparse vector using unordered (index, value) pairs in a Java friendly way.

    size

    vector size.

    elements

    vector elements in (index, value) pairs.

    Annotations
    @Since( "2.0.0" )
  5. def sparse(size: Int, elements: Seq[(Int, Double)]): Vector

    Creates a sparse vector using unordered (index, value) pairs.

    Creates a sparse vector using unordered (index, value) pairs.

    size

    vector size.

    elements

    vector elements in (index, value) pairs.

    Annotations
    @Since( "2.0.0" )
  6. def sparse(size: Int, indices: Array[Int], values: Array[Double]): Vector

    Creates a sparse vector providing its index array and value array.

    Creates a sparse vector providing its index array and value array.

    size

    vector size.

    indices

    index array, must be strictly increasing.

    values

    value array, must have the same length as indices.

    Annotations
    @Since( "2.0.0" )
  7. def sqdist(v1: Vector, v2: Vector): Double

    Returns the squared distance between two Vectors.

    Returns the squared distance between two Vectors.

    v1

    first Vector.

    v2

    second Vector.

    returns

    squared distance between two Vectors.

    Annotations
    @Since( "2.0.0" )
  8. def zeros(size: Int): Vector

    Creates a vector of all zeros.

    Creates a vector of all zeros.

    size

    vector size

    returns

    a zero vector

    Annotations
    @Since( "2.0.0" )