de.lmu.ifi.dbs.elki.distance.distancefunction
Interface PrimitiveDoubleDistanceFunction<O>

Type Parameters:

O - Object type

All Superinterfaces:

DistanceFunction<O,DoubleDistance>, InspectionUtilFrequentlyScanned, Parameterizable, PrimitiveDistanceFunction<O,DoubleDistance>

All Known Subinterfaces:

SpatialPrimitiveDoubleDistanceFunction<V>

All Known Implementing Classes:

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

public interface PrimitiveDoubleDistanceFunction<O>
extends PrimitiveDistanceFunction<O,DoubleDistance>

Interface for distance functions that can provide a raw double value. This is for use in performance-critical situations that need to avoid the boxing/unboxing cost of regular distance API.

Method Summary

double

doubleDistance(O o1, O o2) Computes the distance between two given Objects according to this distance function.

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

distance, getInputTypeRestriction

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

getDistanceFactory, instantiate, isMetric, isSymmetric

Method Detail

doubleDistance

double doubleDistance(O o1,
                      O o2)

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

Parameters:

o1 - first Object

o2 - second Object

Returns:

the distance between two given Objects according to this distance function