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<meta name="description" content="API documentation for the Rust `Exp1` struct in crate `rand`.">
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<title>rand::distributions::exponential::Exp1 - Rust</title>
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<p class='location'>Struct Exp1</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-Copy">Copy</a><a href="#impl-Clone">Clone</a><a href="#impl-Rand">Rand</a></div></div><p class='location'><a href='../../index.html'>rand</a>::<wbr><a href='../index.html'>distributions</a>::<wbr><a href='index.html'>exponential</a></p><script>window.sidebarCurrent = {name: 'Exp1', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<section id='main' class="content">
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<h1 class='fqn'><span class='in-band'>Struct <a href='../../index.html'>rand</a>::<wbr><a href='../index.html'>distributions</a>::<wbr><a href='index.html'>exponential</a>::<wbr><a class="struct" href=''>Exp1</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</a>
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</span><a class='srclink' href='../../../src/rand/distributions/exponential.rs.html#38' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct Exp1(pub <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>);</pre><div class='docblock'><p>A wrapper around an <code>f64</code> to generate Exp(1) random numbers.</p>
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<p>See <code>Exp</code> for the general exponential distribution.</p>
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<p>Implemented via the ZIGNOR variant[1] of the Ziggurat method. The
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exact description in the paper was adjusted to use tables for the
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exponential distribution rather than normal.</p>
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<p>[1]: Jurgen A. Doornik (2005). <a href="http://www.doornik.com/research/ziggurat.pdf"><em>An Improved Ziggurat Method to
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Generate Normal Random
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Samples</em></a>. Nuffield
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College, Oxford</p>
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<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">rand</span>::<span class="ident">distributions</span>::<span class="ident">exponential</span>::<span class="ident">Exp1</span>;
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<span class="kw">let</span> <span class="ident">Exp1</span>(<span class="ident">x</span>) <span class="op">=</span> <span class="ident">rand</span>::<span class="ident">random</span>();
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<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">x</span>);</pre>
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<h2 id='implementations' class='small-section-header'>
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Trait Implementations<a href='#implementations' class='anchor'></a>
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</h2>
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<h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../../rand/distributions/exponential/struct.Exp1.html" title="struct rand::distributions::exponential::Exp1">Exp1</a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/exponential.rs.html#37' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, __arg_0: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/exponential.rs.html#37' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></div><h3 id='impl-Copy' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> for <a class="struct" href="../../../rand/distributions/exponential/struct.Exp1.html" title="struct rand::distributions::exponential::Exp1">Exp1</a></code><a href='#impl-Copy' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/exponential.rs.html#37' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'></div><h3 id='impl-Clone' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../../../rand/distributions/exponential/struct.Exp1.html" title="struct rand::distributions::exponential::Exp1">Exp1</a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/exponential.rs.html#37' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../../../rand/distributions/exponential/struct.Exp1.html" title="struct rand::distributions::exponential::Exp1">Exp1</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/exponential.rs.html#37' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
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</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
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</div></div><h3 id='impl-Rand' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../rand/trait.Rand.html" title="trait rand::Rand">Rand</a> for <a class="struct" href="../../../rand/distributions/exponential/struct.Exp1.html" title="struct rand::distributions::exponential::Exp1">Exp1</a></code><a href='#impl-Rand' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/exponential.rs.html#41-58' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.rand' class="method"><span id='rand.v' class='invisible'><code>fn <a href='../../../rand/trait.Rand.html#tymethod.rand' class='fnname'>rand</a><R>(rng: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>R) -> <a class="struct" href="../../../rand/distributions/exponential/struct.Exp1.html" title="struct rand::distributions::exponential::Exp1">Exp1</a> <span class="where fmt-newline">where<br> R: <a class="trait" href="../../../rand/trait.Rng.html" title="trait rand::Rng">Rng</a>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/exponential.rs.html#43-57' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Generates a random instance of this type using the specified source of randomness. <a href="../../../rand/trait.Rand.html#tymethod.rand">Read more</a></p>
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