dynare/matlab/doc/lpdfgbeta.html

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<title>Description of lpdfgbeta</title>
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<meta name="description" content="log (generalized) BETA PDF">
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<div><a href="../index.html">Home</a> &gt; <a href="index.html">.</a> &gt; lpdfgbeta.m</div>
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<h1>lpdfgbeta
</h1>
<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>log (generalized) BETA PDF</strong></div>
<h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>function ldens = lpdfgbeta(x,a,b,aa,bb); </strong></div>
<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="fragment"><pre class="comment"> log (generalized) BETA PDF</pre></div>
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<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
This function calls:
<ul style="list-style-image:url(../matlabicon.gif)">
</ul>
This function is called by:
<ul style="list-style-image:url(../matlabicon.gif)">
<li><a href="priordens.html" class="code" title="function lnprior = priordens(para, pshape, p1, p2, p3, p4)">priordens</a> This procedure computes a prior density for</li></ul>
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<h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="fragment"><pre>0001 <a name="_sub0" href="#_subfunctions" class="code">function ldens = lpdfgbeta(x,a,b,aa,bb);</a>
0002 <span class="comment">% log (generalized) BETA PDF</span>
0003 ldens = -betaln(a,b) + (a-1)*log(x-aa) + (b-1)*log(bb-x) - (a+b-1)*log(bb-aa);
0004 <span class="comment">%gammaln(a+b) - gammaln(a) - gammaln(b)</span>
0005 <span class="comment">%betaln(a,b)</span>
0006 <span class="comment">%pause</span>
0007 <span class="comment">% 02/16/04 SA Interval [aa,bb] is the support of the probability density function.</span></pre></div>
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