, inference, and prediction</em>.
Springer Science \&amp; Business Media.</p>

    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><span class='r-in'><span class='co'># \donttest{</span></span>
<span class='r-in'></span>
<span class='r-in'><span class='co'># data</span></span>
<span class='r-in'><span class='va'>y</span> <span class='op'>&lt;-</span> <span class='va'>ptsd</span></span>
<span class='r-in'></span>
<span class='r-in'><span clas