 Accepts either
vector or dataframe inputs.</p></td>
    </tr>
    <tr>
      <th>pattern</th>
      <td><p>The base pattern, as either an atomic vector (which will be
recycled for every value in your data) or a vector of the same length as
your data (which will be applied element-wise to your data, so that
<code>data[[1]]</code> will replace <code>pattern[[1]]</code>).</p></td>
    </tr>
    <tr>
      <th>...</th>
      <td><p>Values indicating what placeholders in the pattern should be
replaced -- see "S