><code><a href="example_variable.html">example_variable()</a></code> </p>
        </td>
        <td><p>Function returning relative difference of X and Y</p></td>
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        <td>
          <p><code><a href="example_vector.html">example_vector()</a></code> </p>
        </td>
        <td><p>Function returning a character vector of length "rep"</p></td>
      </tr>
    </tbody><tbody>
      <tr>
        <th colspan="2">
          <h2 id="section-testthat-replacing-functions" c