smile.math.distance

Class HammingDistance

java.lang.Object

smile.math.distance.HammingDistance

All Implemented Interfaces:

java.io.Serializable, java.util.function.ToDoubleBiFunction<java.util.BitSet,java.util.BitSet>, Distance<java.util.BitSet>

public class HammingDistance
extends java.lang.Object
implements Distance<java.util.BitSet>

In information theory, the Hamming distance between two strings of equal length is the number of positions for which the corresponding symbols are different. Put another way, it measures the minimum number of substitutions required to change one into the other, or the number of errors that transformed one string into the other. For a fixed length n, the Hamming distance is a metric on the vector space of the words of that length.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HammingDistance() Constructor.

Method Summary

Modifier and Type	Method and Description
double	d(java.util.BitSet x, java.util.BitSet y) Returns the distance measure between two objects.
static int	d(byte[] x, byte[] y) Returns Hamming distance between the two byte arrays.
static int	d(byte x, byte y) Returns Hamming distance between the two bytes.
static int	d(int[] x, int[] y) Returns Hamming distance between the two integer arrays.
static int	d(int x, int y) Returns Hamming distance between the two integers.
static int	d(long x, long y) Returns Hamming distance between the two long integers.
static int	d(short[] x, short[] y) Returns Hamming distance between the two short arrays.
static int	d(short x, short y) Returns Hamming distance between the two shorts.
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

HammingDistance

public HammingDistance()

Constructor.

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

d

public double d(java.util.BitSet x,
                java.util.BitSet y)

Description copied from interface: Distance

Returns the distance measure between two objects.

Specified by:

d in interface Distance<java.util.BitSet>

d

public static int d(byte x,
                    byte y)

Returns Hamming distance between the two bytes.

d

public static int d(short x,
                    short y)

Returns Hamming distance between the two shorts.

d

public static int d(int x,
                    int y)

Returns Hamming distance between the two integers.

d

public static int d(long x,
                    long y)

Returns Hamming distance between the two long integers.

d

public static int d(byte[] x,
                    byte[] y)

Returns Hamming distance between the two byte arrays.

d

public static int d(short[] x,
                    short[] y)

Returns Hamming distance between the two short arrays.

d

public static int d(int[] x,
                    int[] y)

Returns Hamming distance between the two integer arrays.