de.lmu.ifi.dbs.elki.distance.distancefunction
Interface PrimitiveDistanceFunction<O,D extends Distance<?>>

Type Parameters:

O - input object type

D - distance result type

All Superinterfaces:

DistanceFunction<O,D>, InspectionUtilFrequentlyScanned, Parameterizable

All Known Subinterfaces:

PrimitiveDoubleDistanceFunction<O>, SpatialPrimitiveDistanceFunction<V,D>, SpatialPrimitiveDoubleDistanceFunction<V>

All Known Implementing Classes:

AbstractCosineDistanceFunction, AbstractDimensionsSelectingDoubleDistanceFunction, AbstractEditDistanceFunction, AbstractPrimitiveDistanceFunction, AbstractVectorDoubleDistanceFunction, ArcCosineDistanceFunction, CosineDistanceFunction, DimensionSelectingDistanceFunction, DimensionSelectingLatLngDistanceFunction, DimensionsSelectingEuclideanDistanceFunction, DTWDistanceFunction, EDRDistanceFunction, ERPDistanceFunction, EuclideanDistanceFunction, FooKernelFunction, HistogramIntersectionDistanceFunction, HSBHistogramQuadraticDistanceFunction, LatLngDistanceFunction, LCSSDistanceFunction, LinearKernelFunction, LngLatDistanceFunction, LPNormDistanceFunction, ManhattanDistanceFunction, MaximumDistanceFunction, MinimumDistanceFunction, PearsonCorrelationDistanceFunction, PolynomialKernelFunction, RGBHistogramQuadraticDistanceFunction, SquaredEuclideanDistanceFunction, SquaredPearsonCorrelationDistanceFunction, WeightedDistanceFunction, WeightedLPNormDistanceFunction, WeightedPearsonCorrelationDistanceFunction, WeightedSquaredEuclideanDistanceFunction, WeightedSquaredPearsonCorrelationDistanceFunction

public interface PrimitiveDistanceFunction<O,D extends Distance<?>>
extends DistanceFunction<O,D>

Primitive distance function that is defined on some kind of object.

Method Summary

D	distance(O o1, O o2) Computes the distance between two given DatabaseObjects according to this distance function.
SimpleTypeInformation<? super O>	getInputTypeRestriction() Get the input data type of the function.

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.DistanceFunction

getDistanceFactory, instantiate, isMetric, isSymmetric

Method Detail

distance

D distance(O o1,
           O o2)

Computes the distance between two given DatabaseObjects according to this distance function.

Parameters:

o1 - first DatabaseObject

o2 - second DatabaseObject

Returns:

the distance between two given DatabaseObjects according to this distance function

getInputTypeRestriction

SimpleTypeInformation<? super O> getInputTypeRestriction()

Description copied from interface: DistanceFunction

Get the input data type of the function.

Specified by:

getInputTypeRestriction in interface DistanceFunction<O,D extends Distance<?>>

Returns:

Type restriction