 computed with <code><a href="analyze_objects.html">analyze_objects()</a></code>.</p></dd>


<dt id="arg-measure">measure<a class="anchor" aria-label="anchor" href="#arg-measure"></a></dt>
<dd><p>For <code>plot_measures()</code>, a character string; for
<code>get_measures()</code>, a two-sided formula, e.g., <code>measure = area ~ 100</code>
indicating the known value of object <code>id</code>. The right-hand side is the known
value and the left-hand side can be one of the following.</p><ul><li><p><code>are