<dl><dt>base</dt>
<dd><p>A (\(hm \times 1\)) numeric vector containing the high-frequency base forecasts;
\(m\) is the max. temporal aggregation order, and \(h\) is the forecast horizon for the
lowest frequency time series.</p></dd>


<dt>agg_order</dt>
<dd><p>Highest available sampling frequency per seasonal cycle (max. order
of temporal aggregation, \(m\)), or a vector representing a subset of \(p\) factors
of \(m\).</p></dd>


<dt>tew</dt>
<dd><p>A string specifying the type of temporal aggregation. Opti