Vectors (Spark 1.6.3 JavaDoc)

Object
- org.apache.spark.mllib.linalg.Vectors

```
public class Vectors
extends Object
```

Constructor Summary

Constructors
Constructor and Description

Vectors()

Constructors
Constructor and Description
`Vectors()`

Method Summary

Methods
Modifier and Type	Method and Description
`static Vector`	`dense(double[] values)` Creates a dense vector from a double array.
`static Vector`	`dense(double firstValue, double... otherValues)` Creates a dense vector from its values.
`static Vector`	`dense(double firstValue, scala.collection.Seq<Object> otherValues)` Creates a dense vector from its values.
`static Vector`	`fromJson(String json)` Parses the JSON representation of a vector into a `Vector`.
`static int`	`MAX_HASH_NNZ()` Max number of nonzero entries used in computing hash code.
`static double`	`norm(Vector vector, double p)` Returns the p-norm of this vector.
`static Vector`	`parse(String s)` Parses a string resulted from `Vector.toString` into a `Vector`.
`static Vector`	`sparse(int size, int[] indices, double[] values)` Creates a sparse vector providing its index array and value array.
`static Vector`	`sparse(int size, Iterable<scala.Tuple2<Integer,Double>> elements)` Creates a sparse vector using unordered (index, value) pairs in a Java friendly way.
`static Vector`	`sparse(int size, scala.collection.Seq<scala.Tuple2<Object,Object>> elements)` Creates a sparse vector using unordered (index, value) pairs.
`static double`	`sqdist(Vector v1, Vector v2)` Returns the squared distance between two Vectors.
`static Vector`	`zeros(int size)` Creates a vector of all zeros.

Methods inherited from class Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Vectors
```
public Vectors()
```
- Method Detail
  - dense
```
public static Vector dense(double firstValue,
           double... otherValues)
```
    Creates a dense vector from its values.
    
    Parameters:
    firstValue - (undocumented)
    otherValues - (undocumented)
    
    Returns:
    (undocumented)
  - dense
```
public static Vector dense(double firstValue,
           scala.collection.Seq<Object> otherValues)
```
    Creates a dense vector from its values.
    
    Parameters:
    firstValue - (undocumented)
    otherValues - (undocumented)
    
    Returns:
    (undocumented)
  - dense
```
public static Vector dense(double[] values)
```
    Creates a dense vector from a double array.
    
    Parameters:
    values - (undocumented)
    
    Returns:
    (undocumented)
  - sparse
```
public static Vector sparse(int size,
            int[] indices,
            double[] values)
```
    Creates a sparse vector providing its index array and value array.
    
    Parameters:
    size - vector size.
    indices - index array, must be strictly increasing.
    values - value array, must have the same length as indices.
    
    Returns:
    (undocumented)
  - sparse
```
public static Vector sparse(int size,
            scala.collection.Seq<scala.Tuple2<Object,Object>> elements)
```
    Creates a sparse vector using unordered (index, value) pairs.
    
    Parameters:
    size - vector size.
    elements - vector elements in (index, value) pairs.
    
    Returns:
    (undocumented)
  - sparse
```
public static Vector sparse(int size,
            Iterable<scala.Tuple2<Integer,Double>> elements)
```
    Creates a sparse vector using unordered (index, value) pairs in a Java friendly way.
    
    Parameters:
    size - vector size.
    elements - vector elements in (index, value) pairs.
    
    Returns:
    (undocumented)
  - zeros
```
public static Vector zeros(int size)
```
    Creates a vector of all zeros.
    
    Parameters:
    size - vector size
    
    Returns:
    a zero vector
  - parse
```
public static Vector parse(String s)
```
    Parses a string resulted from Vector.toString into a Vector.
    
    Parameters:
    s - (undocumented)
    
    Returns:
    (undocumented)
  - fromJson
```
public static Vector fromJson(String json)
```
    Parses the JSON representation of a vector into a Vector.
    
    Parameters:
    json - (undocumented)
    
    Returns:
    (undocumented)
  - norm
```
public static double norm(Vector vector,
          double p)
```
    Returns the p-norm of this vector.
    
    Parameters:
    vector - input vector.
    p - norm.
    
    Returns:
    norm in L^p^ space.
  - sqdist
```
public static double sqdist(Vector v1,
            Vector v2)
```
    Returns the squared distance between two Vectors.
    
    Parameters:
    v1 - first Vector.
    v2 - second Vector.
    
    Returns:
    squared distance between two Vectors.
  - MAX_HASH_NNZ
```
public static int MAX_HASH_NNZ()
```
    Max number of nonzero entries used in computing hash code.

Class Vectors

Constructor Summary

Method Summary

Methods inherited from class Object

Constructor Detail

Vectors

Method Detail

dense

dense

dense

sparse

sparse

sparse

zeros

parse

fromJson

norm

sqdist

MAX_HASH_NNZ