| <!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="Low-level API for sampling indices"><meta name="keywords" content="rust, rustlang, rust-lang, index"><title>rand::seq::index - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script src="../../../crates.js"></script><script defer src="../../../main.js"></script> |
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| <h1 class="fqn"><span class="in-band">Module <a href="../../index.html">rand</a>::<wbr><a href="../index.html">seq</a>::<wbr><a class="mod" href="#">index</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></span></h1><span class="out-of-band"> |
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| <div class="item-info"><div class="stab portability">This is supported on <strong>crate feature <code>alloc</code></strong> only.</div></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Low-level API for sampling indices</p> |
| </div></details><h2 id="enums" class="small-section-header"><a href="#enums">Enums</a></h2> |
| <div class="item-table"><div class="item-row"><div class="item-left module-item"><a class="enum" href="enum.IndexVec.html" title="rand::seq::index::IndexVec enum">IndexVec</a></div><div class="item-right docblock-short"><p>A vector of indices.</p> |
| </div></div><div class="item-row"><div class="item-left module-item"><a class="enum" href="enum.IndexVecIntoIter.html" title="rand::seq::index::IndexVecIntoIter enum">IndexVecIntoIter</a></div><div class="item-right docblock-short"><p>Return type of <code>IndexVec::into_iter</code>.</p> |
| </div></div><div class="item-row"><div class="item-left module-item"><a class="enum" href="enum.IndexVecIter.html" title="rand::seq::index::IndexVecIter enum">IndexVecIter</a></div><div class="item-right docblock-short"><p>Return type of <code>IndexVec::iter</code>.</p> |
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| <div class="item-table"><div class="item-row"><div class="item-left module-item"><a class="fn" href="fn.sample.html" title="rand::seq::index::sample fn">sample</a></div><div class="item-right docblock-short"><p>Randomly sample exactly <code>amount</code> distinct indices from <code>0..length</code>, and |
| return them in random order (fully shuffled).</p> |
| </div></div><div class="item-row"><div class="item-left module-item"><a class="fn" href="fn.sample_weighted.html" title="rand::seq::index::sample_weighted fn">sample_weighted</a><span class="stab portability" title="This is supported on crate feature `std` only"><code>std</code></span></div><div class="item-right docblock-short"><p>Randomly sample exactly <code>amount</code> distinct indices from <code>0..length</code>, and |
| return them in an arbitrary order (there is no guarantee of shuffling or |
| ordering). The weights are to be provided by the input function <code>weights</code>, |
| which will be called once for each index.</p> |
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