 <code><a href="https://rdrr.io/pkg/maps/man/world2.html" class="external-link">world2</a></code>.</p></dd>


<dt>region</dt>
<dd><p>name of subregions to include.  Defaults to <code>.</code> which
includes all subregion.  See documentation for <code><a href="https://rdrr.io/pkg/maps/man/map.html" class="external-link">map</a></code>
for more details.</p></dd>


<dt>exact</dt>
<dd><p>should the <code>region</code> be treated as a regular expression
(<code>FALSE</code>) or as a fixed string (<code>TRUE</code