Vector (Spark 1.4.0 JavaDoc)

Object
- org.apache.spark.util.Vector

All Implemented Interfaces:

java.io.Serializable
```
public class Vector
extends Object
implements scala.Serializable
```
See Also:
Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class Vector.Multiplier

static class Vector.VectorAccumParam$

Nested Classes
Modifier and Type	Class and Description
`static class`	`Vector.Multiplier`
`static class`	`Vector.VectorAccumParam$`

Constructor Summary

Constructors
Constructor and Description

Vector(double[] elements)

Constructors
Constructor and Description
`Vector(double[] elements)`

Method Summary

Methods
Modifier and Type	Method and Description
`Vector`	`add(Vector other)`
`Vector`	`addInPlace(Vector other)`
`double`	`apply(int index)`
`double`	`dist(Vector other)`
`Vector`	`divide(double d)`
`double`	`dot(Vector other)`
`static Vector.Multiplier`	`doubleToMultiplier(double num)`
`double[]`	`elements()`
`int`	`length()`
`Vector`	`multiply(double d)`
`static Vector`	`ones(int length)`
`double`	`plusDot(Vector plus, Vector other)` return (this + plus) dot other, but without creating any intermediate storage
`static Vector`	`random(int length, scala.util.Random random)` Creates this `Vector` of given length containing random numbers between 0.0 and 1.0.
`double`	`squaredDist(Vector other)`
`Vector`	`subtract(Vector other)`
`double`	`sum()`
`String`	`toString()`
`static Vector`	`zeros(int length)`

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

Constructor Detail
- Vector
```
public Vector(double[] elements)
```

Method Detail

zeros

public static Vector zeros(int length)

ones

public static Vector ones(int length)

random
```
public static Vector random(int length,
            scala.util.Random random)
```
Creates this Vector of given length containing random numbers between 0.0 and 1.0. Optional scala.util.Random number generator can be provided.

Parameters:
length - (undocumented)
random - (undocumented)

Returns:
(undocumented)

doubleToMultiplier

public static Vector.Multiplier doubleToMultiplier(double num)

elements
```
public double[] elements()
```

length
```
public int length()
```

apply
```
public double apply(int index)
```

add
```
public Vector add(Vector other)
```

subtract
```
public Vector subtract(Vector other)
```

dot
```
public double dot(Vector other)
```

plusDot
```
public double plusDot(Vector plus,
             Vector other)
```
return (this + plus) dot other, but without creating any intermediate storage

Parameters:
plus -
other -

Returns:

addInPlace

public Vector addInPlace(Vector other)

multiply
```
public Vector multiply(double d)
```

divide
```
public Vector divide(double d)
```

sum
```
public double sum()
```

squaredDist

public double squaredDist(Vector other)

dist
```
public double dist(Vector other)
```

toString
```
public String toString()
```
Overrides:

toString in class Object

Class Vector

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class Object

Constructor Detail

Vector

Method Detail

zeros

ones

random

doubleToMultiplier

elements

length

apply

add

subtract

dot

plusDot

addInPlace

multiply

divide

sum

squaredDist

dist

toString