<code>(reals y | reals alpha, reals beta)</code><br> The inverse gamma cumulative distribution function of y given shape alpha and scale beta</p>
<small><i>Available since 2.0</i></small>
<a id="index-entry-24ddd0a34b2809b8f5afa3c540f1223c8cf683f8" class="index-entry"></a> <!-- real; inv_gamma_lcdf; (reals y | reals alpha, reals beta); -->
<p></p>
<p><code>real</code> <strong><code>inv_gamma_lcdf</code></strong><code>(reals y | reals alpha, reals beta)</code><br> The log of the inverse gamma cumulative dist