">NULL</span>, high_freq <span class="op">=</span> <span class="cn">NULL</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>


<dl><dt id="arg-x">x<a class="anchor" aria-label="anchor" href="#arg-x"></a></dt>
<dd><p>Vector, <code>data.frame</code>, <code>matrix</code> or any similar 1D/2D object containing
values for filtering.</p></dd>

<dt id="arg-low-freq">l