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<title>Generates random deviates from a gamma distribution</title>
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<h1 class="refname">stats_rand_gen_gamma</h1>
<p class="verinfo">(PECL stats >= 1.0.0)</p><p class="refpurpose"><span class="refname">stats_rand_gen_gamma</span> — <span class="dc-title">Generates random deviates from a gamma distribution</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.stats-rand-gen-gamma-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">float</span> <span class="methodname"><strong>stats_rand_gen_gamma</strong></span>
( <span class="methodparam"><span class="type">float</span> <code class="parameter">$a</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$r</code></span>
)</div>
<p class="para rdfs-comment">
Generates random deviates from the gamma distribution whose density is
(A**R)/Gamma(R) * X**(R-1) * Exp(-A*X).
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.stats-rand-gen-gamma-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">a</code></em></span>
<dd>
<p class="para">
location parameter of Gamma distribution (<em><code class="parameter">a</code></em>
> 0).
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">r</code></em></span>
<dd>
<p class="para">
shape parameter of Gamma distribution (<em><code class="parameter">r</code></em> >
0).
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.stats-rand-gen-gamma-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
</p>
</div>
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