## Uses of Class
org.apache.lucene.search.similarities.Lambda

- Packages that use Lambda
  Package | Description
  --- | ---
  org.apache.lucene.search.similarities | This package contains the various ranking models that can be used in Lucene.

- - ### Uses of Lambda in org.apache.lucene.search.similarities

    Subclasses of Lambda in org.apache.lucene.search.similarities
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `LambdaDF` | Computes lambda as `docFreq+1 / numberOfDocuments+1`.
    `class` | `LambdaTTF` | Computes lambda as `totalTermFreq+1 / numberOfDocuments+1`.

    Fields in org.apache.lucene.search.similarities declared as Lambda
    Modifier and Type | Field | Description
    --- | --- | ---
    `protected Lambda` | IBSimilarity.`lambda` | The lambda (λw) parameter.

    Methods in org.apache.lucene.search.similarities that return Lambda
    Modifier and Type | Method | Description
    --- | --- | ---
    `Lambda` | IBSimilarity.`getLambda()` | Returns the distribution's lambda parameter

    Constructors in org.apache.lucene.search.similarities with parameters of type Lambda
    Constructor | Description
    --- | ---
    `IBSimilarity​(Distribution distribution, Lambda lambda, Normalization normalization)` | Creates IBSimilarity from the three components.