og density accumulator
has no effect because the log density is only specified up to an
additive constant in the first place. There is nothing specific to
the normal distribution here; constants may always be dropped from the
target.</p>
</div>
<div id="recovering-posterior-mixture-proportions" class="section level3 unnumbered">
<h3>Recovering posterior mixture proportions</h3>
<p>The posterior <span class="math inline">\(p(z_n \mid y_n, \mu, \sigma)\)</span> over the mixture indicator <span class="math inl