         <p><code><a href="FFTrees.html">FFTrees()</a></code> </p>
        </td>
        <td><p>Main function to create and apply fast-and-frugal trees (FFTs)</p></td>
      </tr><tr><td>
          <p><code><a href="FFTrees.guide.html">FFTrees.guide()</a></code> </p>
        </td>
        <td><p>Open the <strong>FFTrees</strong> package guide</p></td>
      </tr><tr><td>
          <p><code><a href="add_fft_df.html">add_fft_df()</a></code> </p>
        </td>
        <td><p>Add an FFT definition to tree defin