\)</span> for <span class="math inline">\(n &gt; Q\)</span>. In this example, the
parameters are all given Cauchy (half-Cauchy for <span class="math inline">\(\sigma\)</span>) priors,
although other priors can be used just as easily.</p>
<p>This model could be improved in terms of speed by vectorizing the
sampling statement in the model block. Vectorizing the calculation of
the <span class="math inline">\(\epsilon_t\)</span> could also be sped up by using a dot product instead
of a loop.</p>
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