smile.math.distance

Class SparseEuclideanDistance

java.lang.Object

smile.math.distance.SparseEuclideanDistance

All Implemented Interfaces:

java.io.Serializable, java.util.function.ToDoubleBiFunction<SparseArray,SparseArray>, Distance<SparseArray>, Metric<SparseArray>

public class SparseEuclideanDistance
extends java.lang.Object
implements Metric<SparseArray>

Euclidean distance on sparse arrays.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SparseEuclideanDistance() Constructor.
SparseEuclideanDistance(double[] weight) Constructor with a given weight vector.

Method Summary

Modifier and Type	Method and Description
double	d(SparseArray x, SparseArray y) Returns the distance measure between two objects.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface smile.math.distance.Distance

apply, applyAsDouble, D, D

Constructor Detail

SparseEuclideanDistance

public SparseEuclideanDistance()

Constructor. Standard (unweighted) Euclidean distance.

SparseEuclideanDistance

public SparseEuclideanDistance(double[] weight)

Constructor with a given weight vector.

Parameters:

weight - the weight vector.

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

d

public double d(SparseArray x,
                SparseArray y)

Description copied from interface: Distance

Returns the distance measure between two objects.

Specified by:

d in interface Distance<SparseArray>