AfterEffectL (Lucene 9.12.2 core API)

java.lang.Object
- org.apache.lucene.search.similarities.AfterEffect
- - org.apache.lucene.search.similarities.AfterEffectL

```
public class AfterEffectL
extends AfterEffect
```
Model of the information gain based on Laplace's law of succession.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

Constructors
Constructor Description

AfterEffectL()
Sole constructor: parameter-free

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Explanation`	`explain(BasicStats stats, double tfn)`	Returns an explanation for the score.
`double`	`scoreTimes1pTfn(BasicStats stats)`	Returns the product of the after effect with `1+tfn`.
`String`	`toString()`	Subclasses must override this method to return the code of the after effect formula.

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

- Constructor Detail
  - AfterEffectL
```
public AfterEffectL()
```
    Sole constructor: parameter-free
- Method Detail
  - scoreTimes1pTfn
```
public final double scoreTimes1pTfn(BasicStats stats)
```
    Description copied from class: AfterEffect
    
    Returns the product of the after effect with 1+tfn. This may not depend on the value of tfn.
    
    Specified by:
    
    scoreTimes1pTfn in class AfterEffect
  - explain
```
public final Explanation explain(BasicStats stats,
                                 double tfn)
```
    Description copied from class: AfterEffect
    
    Returns an explanation for the score.
    
    Specified by:
    
    explain in class AfterEffect
  - toString
```
public String toString()
```
    Description copied from class: AfterEffect
    
    Subclasses must override this method to return the code of the after effect formula. Refer to the original paper for the list.
    
    Specified by:
    
    toString in class AfterEffect