AFKMC2.Instance (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

java.lang.Object
- elki.clustering.kmeans.initialization.KMC2.Instance
- - elki.clustering.kmeans.initialization.AFKMC2.Instance

Direct Known Subclasses:

SphericalAFKMC2.Instance

Enclosing class:

AFKMC2
```
protected static class AFKMC2.Instance
extends KMC2.Instance
```
Abstract instance implementing the weight handling.

Author:

Erich Schubert

Field Summary
- Fields inherited from class elki.clustering.kmeans.initialization.KMC2.Instance
  distance, diststat, m, random, relation, weights

Constructor Summary

Constructors
Constructor	Description
`Instance(elki.database.relation.Relation<? extends elki.data.NumberVector> relation, elki.distance.NumberVectorDistance<?> distance, int m, elki.utilities.random.RandomFactory rnd)`	Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected elki.logging.Logging`	`getLogger()`	Class logger.
`protected elki.database.ids.DBIDRef`	`sample(double weightsum)`	Weighted sampling.

Methods inherited from class elki.clustering.kmeans.initialization.KMC2.Instance
chooseRemaining, distance, distance, initialWeights, run

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

- Constructor Detail
  - Instance
```
public Instance(elki.database.relation.Relation<? extends elki.data.NumberVector> relation,
                elki.distance.NumberVectorDistance<?> distance,
                int m,
                elki.utilities.random.RandomFactory rnd)
```
    Constructor.
    
    Parameters:
    
    relation - Data relation to process
    
    distance - Distance function
    
    m - M parameter
    
    rnd - Random generator
- Method Detail
  - sample
```
protected elki.database.ids.DBIDRef sample(double weightsum)
```
    Description copied from class: KMC2.Instance
    
    Weighted sampling.
    
    Overrides:
    
    sample in class KMC2.Instance
    
    Parameters:
    
    weightsum - Total weight sum.
    
    Returns:
    
    Sampled object
  - getLogger
```
protected elki.logging.Logging getLogger()
```
    Description copied from class: KMC2.Instance
    
    Class logger.
    
    Overrides:
    
    getLogger in class KMC2.Instance
    
    Returns:
    
    Logger