ining a nested data frame.</p></dd>


<dt id="arg-format">format<a class="anchor" aria-label="anchor" href="#arg-format"></a></dt>
<dd><p>character string controlling the format of the output when
<code>CI_subsamples</code> has results for more than one type of confidence
interval. If <code>"wide"</code> (the default), then each performance criterion
will have a separate column for each CI type. If <code>"long"</code>, then each
performance criterion will be a single variable, with separate rows for
each CI