 occurs due to <code>NA</code> values in the covariates (so the
smoother will not have fitted values there). Code like
<code>any(is.na(dsm.obj$data))</code> might be helpful.</p>
    </div>
    <div class="section level2">
    <h2 id="author">Author<a class="anchor" aria-label="anchor" href="#author"></a></h2>
    <p>David L. Miller</p>
    </div>

    <div class="section level2">
    <h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
    <div class="sourceCod