ng values.</p>

<p>We made the following enhancements to the original data for improved usability:</p>
<ul><li><p>Any missing values, denoted as "?" in the dataset, were transformed into <code>NA</code> values.</p></li>
<li><p>Binary factor variables with exclusive "t" and "f" values were converted to logical vectors (<code>TRUE</code>/<code>FALSE</code>).</p></li>
</ul><p>Other than that, the data remains consistent with the original dataset.</p>
    </div>
    <div id="see-also">
    <h2>See also</h2>
   