s y | reals nu, reals sigma); -->
<p></p>
<p><code>real</code> <strong><code>scaled_inv_chi_square_lcdf</code></strong><code>(reals y | reals nu, reals sigma)</code><br>
The log of the scaled inverse Chi-square cumulative distribution
function of y given degrees of freedom nu and scale sigma</p>
<!-- real; scaled_inv_chi_square_lccdf; (reals y | reals nu, reals sigma); -->
<p></p>
<p><code>real</code> <strong><code>scaled_inv_chi_square_lccdf</code></strong><code>(reals y | reals nu, reals sigma)</code><br>