ons include:
"<code>sum</code>" (simple summation, <em>default</em>), "<code>avg</code>" (average),
"<code>first</code>" (first value of the period), and "<code>last</code>"
(last value of the period).</p></dd>


<dt>sntz</dt>
<dd><p>If <code>TRUE</code>, the negative base forecasts are
set to zero before applying bottom-up.</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
    

<p>A (\(h(k^\ast+m) \times 1\)) numeri