>Estimation procedure for HAL, the Highly Adaptive Lasso</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">fit_hal</span><span class="op">(</span></span>
<span>  <span class="va">X</span>,</span>
<span>  <span class="va">Y</span>,</span>
<span>  formula <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  X_unpenalized <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  max_degree <span class="op">