se this 
argument instead of transforming data in the formula directly (see also details below).</p></td>
    </tr>
    <tr>
      <th>distrib</th>
      <td><p>A character string indicating which distribution to use to generate a random value for the
predictor variable. Default is normal distribution: "normal" (function <code><a href='https://rdrr.io/r/stats/Normal.html'>rnorm</a></code>).
Uniform distribution: "uniform" (<code><a href='https://rdrr.io/r/stats/Uniform.html'>runif</a></code>)
Warning: we re