See: Description

| Interface | Description | 
|---|---|
| Distance<D extends Distance<D>> | 
 The interface Distance defines the requirements of any instance class. 
 | 
| Class | Description | 
|---|---|
| AbstractDistance<D extends AbstractDistance<D>> | 
 An abstract distance implements equals conveniently for any extending class. 
 | 
| BitDistance | 
 Provides a Distance for a bit-valued distance. 
 | 
| CorrelationDistance<D extends CorrelationDistance<D>> | 
 The correlation distance is a special Distance that indicates the
 dissimilarity between correlation connected objects. 
 | 
| DoubleDistance | 
 Provides a Distance for a double-valued distance. 
 | 
| FloatDistance | 
 Provides a Distance for a float-valued distance. 
 | 
| IntegerDistance | 
 Provides an integer distance value. 
 | 
| NumberDistance<D extends NumberDistance<D,N>,N extends Number> | 
 Provides a Distance for a number-valued distance. 
 | 
| PCACorrelationDistance | 
 The correlation distance is a special Distance that indicates the
 dissimilarity between correlation connected objects. 
 | 
| PreferenceVectorBasedCorrelationDistance | 
 A PreferenceVectorBasedCorrelationDistance holds additionally to the
 CorrelationDistance the common preference vector of the two objects defining
 the distance. 
 | 
| SubspaceDistance | 
 The subspace distance is a special distance that indicates the dissimilarity
 between subspaces of equal dimensionality. 
 | 
Distance values, i.e. object storing an actual distance value along with comparison functions and value parsers.
Distances follow a factory pattern. Usually, a class will have a static instance
 called FACTORY that can be used to obtain e.g. infinity or zero distances
 as well as parse a string value into a new distance value.