ment to adjust the format of the x scale labels.</p></td>
    </tr>
    <tr>
      <th>x_pretty_n</th>
      <td><p>The desired number of intervals on the x axis, as calculated by the pretty algorithm. Defaults to 6. Not applicable where isMobile equals TRUE.</p></td>
    </tr>
    <tr>
      <th>x_expand</th>
      <td><p>A vector of range expansion constants used to add some padding on the x scale.</p></td>
    </tr>
    <tr>
      <th>y_zero</th>
      <td><p>TRUE or FALSE whether the minimum of the y sc