QNMinimizer.L2RegFunction (Apache OpenNLP Tools 2.0.0 API)

java.lang.Object
- opennlp.tools.ml.maxent.quasinewton.QNMinimizer.L2RegFunction

All Implemented Interfaces:

Function

Enclosing class:

QNMinimizer
```
public static class QNMinimizer.L2RegFunction
extends Object
implements Function
```
L2-regularized objective function

- Constructor Summary
  
  Constructors
  Constructor Description
  
  L2RegFunction(Function f, double l2Cost)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  int getDimension()
  
  double[] gradientAt(double[] x)
  
  double valueAt(double[] x)
  - Methods inherited from class java.lang.Object
    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - L2RegFunction
```
public L2RegFunction(Function f,
                     double l2Cost)
```
- Method Detail
  - getDimension
```
public int getDimension()
```
    Specified by:
    
    getDimension in interface Function
  - valueAt
```
public double valueAt(double[] x)
```
    Specified by:
    
    valueAt in interface Function
  - gradientAt
```
public double[] gradientAt(double[] x)
```
    Specified by:
    
    gradientAt in interface Function