Vector (Flink : 1.12-SNAPSHOT API)

java.lang.Object
- org.apache.flink.ml.common.linalg.Vector

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

DenseVector, SparseVector
```
public abstract class Vector
extends Object
implements Serializable
```
The Vector class defines some common methods for both DenseVector and SparseVector.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description

Vector()

Constructors
Constructor and Description
`Vector()`

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`abstract void`	`add(int i, double val)` Add the i-th element of the vector by value "val".
`abstract Vector`	`append(double v)` Create a new vector by adding an element to the end of the vector.
`abstract double`	`dot(Vector vec)` Compute the dot product with another vector.
`abstract double`	`get(int i)` Get the i-th element of the vector.
`abstract VectorIterator`	`iterator()` Get the iterator of the vector.
`abstract Vector`	`minus(Vector vec)` Create a new vector by subtracting another vector.
`abstract void`	`normalizeEqual(double p)` Normalize the vector.
`abstract double`	`normInf()` Return the Inf norm of the vector.
`abstract double`	`normL1()` Return the L1 norm of the vector.
`abstract double`	`normL2()` Return the L2 norm of the vector.
`abstract double`	`normL2Square()` Return the square of L2 norm of the vector.
`abstract DenseMatrix`	`outer()` Compute the outer product with itself.
`abstract Vector`	`plus(Vector vec)` Create a new vector by plussing another vector.
`abstract Vector`	`prefix(double v)` Create a new vector by adding an element to the head of the vector.
`abstract Vector`	`scale(double v)` Scale the vector by value "v" and create a new vector to store the result.
`abstract void`	`scaleEqual(double v)` Scale the vector by value "v".
`abstract void`	`set(int i, double val)` Set the i-th element of the vector to value "val".
`abstract int`	`size()` Get the size of the vector.
`abstract Vector`	`slice(int[] indexes)` Slice the vector.
`abstract void`	`standardizeEqual(double mean, double stdvar)` Standardize the vector.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Vector
```
public Vector()
```
- Method Detail
  - size
```
public abstract int size()
```
    Get the size of the vector.
  - get
```
public abstract double get(int i)
```
    Get the i-th element of the vector.
  - set
```
public abstract void set(int i,
                         double val)
```
    Set the i-th element of the vector to value "val".
  - add
```
public abstract void add(int i,
                         double val)
```
    Add the i-th element of the vector by value "val".
  - normL1
```
public abstract double normL1()
```
    Return the L1 norm of the vector.
  - normInf
```
public abstract double normInf()
```
    Return the Inf norm of the vector.
  - normL2
```
public abstract double normL2()
```
    Return the L2 norm of the vector.
  - normL2Square
```
public abstract double normL2Square()
```
    Return the square of L2 norm of the vector.
  - scale
```
public abstract Vector scale(double v)
```
    Scale the vector by value "v" and create a new vector to store the result.
  - scaleEqual
```
public abstract void scaleEqual(double v)
```
    Scale the vector by value "v".
  - normalizeEqual
```
public abstract void normalizeEqual(double p)
```
    Normalize the vector.
  - standardizeEqual
```
public abstract void standardizeEqual(double mean,
                                      double stdvar)
```
    Standardize the vector.
  - prefix
```
public abstract Vector prefix(double v)
```
    Create a new vector by adding an element to the head of the vector.
  - append
```
public abstract Vector append(double v)
```
    Create a new vector by adding an element to the end of the vector.
  - plus
```
public abstract Vector plus(Vector vec)
```
    Create a new vector by plussing another vector.
  - minus
```
public abstract Vector minus(Vector vec)
```
    Create a new vector by subtracting another vector.
  - dot
```
public abstract double dot(Vector vec)
```
    Compute the dot product with another vector.
  - iterator
```
public abstract VectorIterator iterator()
```
    Get the iterator of the vector.
  - slice
```
public abstract Vector slice(int[] indexes)
```
    Slice the vector.
  - outer
```
public abstract DenseMatrix outer()
```
    Compute the outer product with itself.
    
    Returns:
    
    The outer product matrix.

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Class Vector

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Vector

Method Detail

size

get

set

add

normL1

normInf

normL2

normL2Square

scale

scaleEqual

normalizeEqual

standardizeEqual

prefix

append

plus

minus

dot

iterator

slice

outer