RONCC
/
HPC-Tools-for-Quantum-Computing


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138
							<!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="API documentation for the Rust `sample` fn in crate `rand`.">
    <meta name="keywords" content="rust, rustlang, rust-lang, sample">

    <title>rand::sample - Rust</title>

    <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="../dark.css">
    <link rel="stylesheet" type="text/css" href="../main.css" id="themeStyle">
    <script src="../storage.js"></script>
    

    <link rel="shortcut icon" href="https://www.rust-lang.org/favicon.ico">
    
</head>
<body class="rustdoc fn">
    <!--[if lte IE 8]>

    <div class="warning">

        This old browser is unsupported and will most likely display funky

        things.

    </div>

    <![endif]-->

    

    <nav class="sidebar">
        <div class="sidebar-menu">&#9776;</div>
        <a href='../rand/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk.png' alt='logo' width='100'></a>
        <p class='location'><a href='index.html'>rand</a></p><script>window.sidebarCurrent = {name: 'sample', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script>
    </nav>

    <div class="theme-picker">
        <button id="theme-picker" aria-label="Pick another theme!">
            <img src="../brush.svg" width="18" alt="Pick another theme!">
        </button>
        <div id="theme-choices"></div>
    </div>
    <script src="../theme.js"></script>
    <nav class="sub">
        <form class="search-form js-only">
            <div class="search-container">
                <input class="search-input" name="search"

                       autocomplete="off"

                       placeholder="Click or press ‘S’ to search, ‘?’ for more options…"

                       type="search">
            </div>
        </form>
    </nav>

    <section id='main' class="content">
<h1 class='fqn'><span class='in-band'>Function <a href='index.html'>rand</a>::<wbr><a class="fn" href=''>sample</a></span><span class='out-of-band'><span id='render-detail'>
                   <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
                       [<span class='inner'>&#x2212;</span>]
                   </a>
               </span><a class='srclink' href='../src/rand/lib.rs.html#976-983' title='goto source code'>[src]</a></span></h1>
<pre class='rust fn'>pub fn sample&lt;T, I, R&gt;(rng: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>R, iterable: I, amount: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a>&lt;Item = T&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="../rand/trait.Rng.html" title="trait rand::Rng">Rng</a>,&nbsp;</span></pre><div class='stability'><div class='stab deprecated'>Deprecated since 0.4.0<p>: renamed to seq::sample_iter</p>
</div></div><div class='docblock'><p>DEPRECATED: use <code>seq::sample_iter</code> instead.</p>
<p>Randomly sample up to <code>amount</code> elements from a finite iterator.
The order of elements in the sample is not random.</p>
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">rand</span>::{<span class="ident">thread_rng</span>, <span class="ident">sample</span>};

<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rng</span> <span class="op">=</span> <span class="ident">thread_rng</span>();
<span class="kw">let</span> <span class="ident">sample</span> <span class="op">=</span> <span class="ident">sample</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">rng</span>, <span class="number">1</span>..<span class="number">100</span>, <span class="number">5</span>);
<span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;{:?}&quot;</span>, <span class="ident">sample</span>);</pre>
</div></section>
    <section id='search' class="content hidden"></section>

    <section class="footer"></section>

    <aside id="help" class="hidden">
        <div>
            <h1 class="hidden">Help</h1>

            <div class="shortcuts">
                <h2>Keyboard Shortcuts</h2>

                <dl>
                    <dt><kbd>?</kbd></dt>
                    <dd>Show this help dialog</dd>
                    <dt><kbd>S</kbd></dt>
                    <dd>Focus the search field</dd>
                    <dt><kbd>↑</kbd></dt>
                    <dd>Move up in search results</dd>
                    <dt><kbd>↓</kbd></dt>
                    <dd>Move down in search results</dd>
                    <dt><kbd>↹</kbd></dt>
                    <dd>Switch tab</dd>
                    <dt><kbd>&#9166;</kbd></dt>
                    <dd>Go to active search result</dd>
                    <dt><kbd>+</kbd></dt>
                    <dd>Expand all sections</dd>
                    <dt><kbd>-</kbd></dt>
                    <dd>Collapse all sections</dd>
                </dl>
            </div>

            <div class="infos">
                <h2>Search Tricks</h2>

                <p>
                    Prefix searches with a type followed by a colon (e.g.
                    <code>fn:</code>) to restrict the search to a given type.
                </p>

                <p>
                    Accepted types are: <code>fn</code>, <code>mod</code>,
                    <code>struct</code>, <code>enum</code>,
                    <code>trait</code>, <code>type</code>, <code>macro</code>,
                    and <code>const</code>.
                </p>

                <p>
                    Search functions by type signature (e.g.
                    <code>vec -> usize</code> or <code>* -> vec</code>)
                </p>
            </div>
        </div>
    </aside>

    

    <script>

        window.rootPath = "../";

        window.currentCrate = "rand";

    </script>
    <script src="../main.js"></script>
    <script defer src="../search-index.js"></script>
</body>
</html>