<p>default 3000L, the QGIS sampling threshold; over 3000, the observations presented to "fisher" and "jenks" are either a <code>samp_prop=</code> sample or a sample of 3000, whichever is larger</p></dd>

  <dt id="arg-samp-prop">samp_prop<a class="anchor" aria-label="anchor" href="#arg-samp-prop"></a></dt>
<dd><p>default 0.1, QGIS 10% sampling proportion</p></dd>

  <dt id="arg-gr">gr<a class="anchor" aria-label="anchor" href="#arg-gr"></a></dt>
<dd><p>default <code>c("[", "]")</code>, if the <span class="p