Struct eudex::Difference

pub struct Difference { /* fields omitted */ }

The difference between two words.

Methods

impl Difference

fn dist(self) -> u32

The "graduated" distance.

This will assign different weights to each of the bytes Hamming weight and simply add it. For most use cases, this metric is the preferred one.

Examples

use eudex::Hash;

println!("{}", (Hash::new("lulz") - Hash::new("lol")).dist());

fn xor(self) -> u64

The XOR distance.

This is generally not recommend unless you have a very specific reason to prefer it over the other methods provided.

Examples

use eudex::Hash;

println!("{}", (Hash::new("hello") - Hash::new("hellou")).xor())

fn hamming(self) -> u32

The "flat" Hamming based distance.

This will let every byte carry the same weight, such that mismatch in the early and later mismatch counts the same.

Examples

use eudex::Hash;

println!("{}", (Hash::new("hello") - Hash::new("hellou")).hamming())

fn similar(self) -> bool

Does this difference constitute similarity?

Examples

use eudex::Hash;

assert!((Hash::new("hello") - Hash::new("hellou")).similar())

Trait Implementations

impl Copy for Difference

impl Clone for Difference

fn clone(&self) -> Difference

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.