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97 lines
2.5 KiB
HTML
97 lines
2.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Probability density function of the gamma distribution</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.stats-dens-gamma" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">stats_dens_gamma</h1>
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<p class="verinfo">(PECL stats >= 1.0.0)</p><p class="refpurpose"><span class="refname">stats_dens_gamma</span> — <span class="dc-title">Probability density function of the gamma distribution</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.stats-dens-gamma-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>stats_dens_gamma</strong></span>
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( <span class="methodparam"><span class="type">float</span> <code class="parameter">$x</code></span>
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, <span class="methodparam"><span class="type">float</span> <code class="parameter">$shape</code></span>
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, <span class="methodparam"><span class="type">float</span> <code class="parameter">$scale</code></span>
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) : <span class="type">float</span></div>
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<p class="para rdfs-comment">
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Returns the probability density at <code class="parameter">x</code>, where the
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random variable follows the gamma distribution of which the shape parameter
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is <code class="parameter">shape</code> and the scale parameter is <code class="parameter">scale</code>.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.stats-dens-gamma-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">x</code></dt>
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<dd>
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<p class="para">
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The value at which the probability density is calculated
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</p>
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</dd>
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<dt>
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<code class="parameter">shape</code></dt>
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<dd>
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<p class="para">
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The shape parameter of the distribution
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</p>
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</dd>
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<dt>
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<code class="parameter">scale</code></dt>
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<dd>
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<p class="para">
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The scale parameter of the distribution
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.stats-dens-gamma-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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The probability density at <code class="parameter">x</code> or <strong><code>FALSE</code></strong> for failure.
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</p>
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</div>
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</div></div></div></body></html> |