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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Calculates a normalized score of the Damerau–Levenshtein algorithm between 0.0 and 1.0 (inclusive), where 1.0 means the strings are the same."><title>normalized_damerau_levenshtein in strsim - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-dd39b87e5fcfba68.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="strsim" data-themes="" data-resource-suffix="" data-rustdoc-version="1.80.0 (051478957 2024-07-21)" data-channel="1.80.0" data-search-js="search-d52510db62a78183.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-118b08c4c78b968e.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-20a3ad099b048cf2.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-df360f571f6edeae.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../strsim/index.html">strsim</a><span class="version">0.11.1</span></h2></div><div class="sidebar-elems"></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1>Function <a href="index.html">strsim</a>::<wbr><a class="fn" href="#">normalized_damerau_levenshtein</a><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><span class="out-of-band"><a class="src" href="../src/strsim/lib.rs.html#693-702">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub fn normalized_damerau_levenshtein(a: &<a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>, b: &<a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.f64.html">f64</a></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Calculates a normalized score of the Damerau–Levenshtein algorithm between
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0.0 and 1.0 (inclusive), where 1.0 means the strings are the same.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>strsim::normalized_damerau_levenshtein;
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<span class="macro">assert!</span>((normalized_damerau_levenshtein(<span class="string">"levenshtein"</span>, <span class="string">"löwenbräu"</span>) - <span class="number">0.27272</span>).abs() < <span class="number">0.00001</span>);
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<span class="macro">assert!</span>((normalized_damerau_levenshtein(<span class="string">""</span>, <span class="string">""</span>) - <span class="number">1.0</span>).abs() < <span class="number">0.00001</span>);
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<span class="macro">assert!</span>(normalized_damerau_levenshtein(<span class="string">""</span>, <span class="string">"flower"</span>).abs() < <span class="number">0.00001</span>);
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<span class="macro">assert!</span>(normalized_damerau_levenshtein(<span class="string">"tree"</span>, <span class="string">""</span>).abs() < <span class="number">0.00001</span>);
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<span class="macro">assert!</span>((normalized_damerau_levenshtein(<span class="string">"sunglasses"</span>, <span class="string">"sunglasses"</span>) - <span class="number">1.0</span>).abs() < <span class="number">0.00001</span>);</code></pre></div>
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