an class="co">#&gt; O6 0.5 0.0 0.0 0.0 0.0  0</span></a></code></pre></div>
<div class="sourceCode" id="cb3"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb3-1" data-line-number="1"><span class="co"># By default, the set of grades are the unique</span></a>
<a class="sourceLine" id="cb3-2" data-line-number="2"><span class="co"># values in the (fuzzy) formal context</span></a>
<a class="sourceLine" id="cb3-3" data-line-number="3"><span class="co"># Let us build the formal_con