igure</p>
</div>
<div id="examples-fits-in-stan" class="section level3 unnumbered">
<h3>Examples: Fits in Stan</h3>
<p>To illustrate the issues with sampling from non-identified and only
weakly identified models, we fit three models with increasing degrees
of identification of their parameters. The posteriors for these
models is illustrated in the non-identifiable density plot. The
first model is the unidentified model with two location parameters and
no priors discussed in the <a href="collinearity-section