DiagonalAddKernel (BioJava-1.7.1 API)

java.lang.Object
- org.biojava.stats.svm.NestedKernel
- - org.biojava.stats.svm.DiagonalAddKernel

All Implemented Interfaces:

java.io.Serializable, SVMKernel
```
public class DiagonalAddKernel
extends NestedKernel
```
Adds a class specific constant to k(x, x).

Author:

Matthew Pocock

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

DiagonalAddKernel()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addNeg(java.lang.Object o)`
`void`	`addPos(java.lang.Object o)`
`double`	`evaluate(java.lang.Object a, java.lang.Object b)`	Return the dot product of a, b.
`double`	`getLambda()`	Retrieve the scale factor.
`void`	`setLambda(double l)`	Set the scale factor.
`java.lang.String`	`toString()`

Methods inherited from class org.biojava.stats.svm.NestedKernel
getNestedKernel, setNestedKernel

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

- Constructor Detail
  - DiagonalAddKernel
```
public DiagonalAddKernel()
```
- Method Detail
  - addPos
```
public void addPos(java.lang.Object o)
```
  - addNeg
```
public void addNeg(java.lang.Object o)
```
  - setLambda
```
public void setLambda(double l)
```
    Set the scale factor.
    
    Parameters:
    
    l - the new scale factor
  - getLambda
```
public double getLambda()
```
    Retrieve the scale factor.
    
    Returns:
    
    the current scale factor
  - evaluate
```
public double evaluate(java.lang.Object a,
                       java.lang.Object b)
```
    Return the dot product of a, b.
    This is equal to k(a, b) + d(a, b) * ||class(a)|| / (||class||) where d(a, b) is zero if a != b, and 1 if a == b. class(a) is the set of all items in the same class as a. class is all items with a classification.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object