nts</h3>
<p><div class="arguments"></p><dl class='dl-horizontal'>
<dt><code>I</code></dt><dd><p>(numeric matrix) The table of the formal context.</p></dd>

<dt><code>grades_set</code></dt><dd><p>(numeric vector, optional) the anumeration of the grades of the attributes.</p></dd>

<dt><code>remove_const</code></dt><dd><p>(logical) If <code>TRUE</code>, remove constant columns. The default is <code>FALSE</code>.</p></dd>

</dl><p></div></p>
<h3>Details</h3>
<p>Columns of <code>I</code> must be named, and are 