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<p class='location'>Struct ChiSquared</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.new">new</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Copy">Copy</a><a href="#impl-Debug">Debug</a><a href="#impl-Sample%3Cf64%3E">Sample<f64></a><a href="#impl-IndependentSample%3Cf64%3E">IndependentSample<f64></a></div></div><p class='location'><a href='../../index.html'>rand</a>::<wbr><a href='../index.html'>distributions</a>::<wbr><a href='index.html'>gamma</a></p><script>window.sidebarCurrent = {name: 'ChiSquared', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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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'>gamma</a>::<wbr><a class="struct" href=''>ChiSquared</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</span><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#201-203' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'>pub struct ChiSquared { /* fields omitted */ }</pre><div class='docblock'><p>The chi-squared distribution <code>χ²(k)</code>, where <code>k</code> is the degrees of
freedom.</p>
<p>For <code>k > 0</code> integral, this distribution is the sum of the squares
of <code>k</code> independent standard normal random variables. For other
<code>k</code>, this uses the equivalent characterisation
<code>χ²(k) = Gamma(k/2, 2)</code>.</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">distributions</span>::{<span class="ident">ChiSquared</span>, <span class="ident">IndependentSample</span>};
<span class="kw">let</span> <span class="ident">chi</span> <span class="op">=</span> <span class="ident">ChiSquared</span>::<span class="ident">new</span>(<span class="number">11.0</span>);
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">chi</span>.<span class="ident">ind_sample</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">rand</span>::<span class="ident">thread_rng</span>());
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{} is from a χ²(11) distribution"</span>, <span class="ident">v</span>)</pre>
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<h2 id='methods' class='small-section-header'>
Methods<a href='#methods' class='anchor'></a>
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<h3 id='impl' class='impl'><span class='in-band'><code>impl <a class="struct" href="../../../rand/distributions/gamma/struct.ChiSquared.html" title="struct rand::distributions::gamma::ChiSquared">ChiSquared</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#214-226' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.new' class="method"><span id='new.v' class='invisible'><code>pub fn <a href='#method.new' class='fnname'>new</a>(k: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="struct" href="../../../rand/distributions/gamma/struct.ChiSquared.html" title="struct rand::distributions::gamma::ChiSquared">ChiSquared</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#217-225' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Create a new chi-squared distribution with degrees-of-freedom
<code>k</code>. Panics if <code>k < 0</code>.</p>
</div></div>
<h2 id='implementations' class='small-section-header'>
Trait Implementations<a href='#implementations' class='anchor'></a>
</h2>
<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/gamma/struct.ChiSquared.html" title="struct rand::distributions::gamma::ChiSquared">ChiSquared</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/gamma.rs.html#200' title='goto source code'>[src]</a></span></h3>
<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/gamma/struct.ChiSquared.html" title="struct rand::distributions::gamma::ChiSquared">ChiSquared</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#200' title='goto source code'>[src]</a></span></h4>
<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>
</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>
<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>
</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/gamma/struct.ChiSquared.html" title="struct rand::distributions::gamma::ChiSquared">ChiSquared</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/gamma.rs.html#200' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'></div><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/gamma/struct.ChiSquared.html" title="struct rand::distributions::gamma::ChiSquared">ChiSquared</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/gamma.rs.html#200' title='goto source code'>[src]</a></span></h3>
<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="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#200' title='goto source code'>[src]</a></span></h4>
<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>
</div></div><h3 id='impl-Sample%3Cf64%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../rand/distributions/trait.Sample.html" title="trait rand::distributions::Sample">Sample</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>> for <a class="struct" href="../../../rand/distributions/gamma/struct.ChiSquared.html" title="struct rand::distributions::gamma::ChiSquared">ChiSquared</a></code><a href='#impl-Sample%3Cf64%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#227-229' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.sample' class="method"><span id='sample.v' class='invisible'><code>fn <a href='../../../rand/distributions/trait.Sample.html#tymethod.sample' class='fnname'>sample</a><R: <a class="trait" href="../../../rand/trait.Rng.html" title="trait rand::Rng">Rng</a>>(&mut self, rng: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>R) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#228' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Generate a random value of <code>Support</code>, using <code>rng</code> as the source of randomness. <a href="../../../rand/distributions/trait.Sample.html#tymethod.sample">Read more</a></p>
</div></div><h3 id='impl-IndependentSample%3Cf64%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../rand/distributions/trait.IndependentSample.html" title="trait rand::distributions::IndependentSample">IndependentSample</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>> for <a class="struct" href="../../../rand/distributions/gamma/struct.ChiSquared.html" title="struct rand::distributions::gamma::ChiSquared">ChiSquared</a></code><a href='#impl-IndependentSample%3Cf64%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#230-241' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.ind_sample' class="method"><span id='ind_sample.v' class='invisible'><code>fn <a href='../../../rand/distributions/trait.IndependentSample.html#tymethod.ind_sample' class='fnname'>ind_sample</a><R: <a class="trait" href="../../../rand/trait.Rng.html" title="trait rand::Rng">Rng</a>>(&self, rng: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>R) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/rand/distributions/gamma.rs.html#231-240' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Generate a random value.</p>
</div></div></section>
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