gt;</span></span>
<span><span class="co">#&gt; Labels:</span></span>
<span><span class="co">#&gt;  value   label</span></span>
<span><span class="co">#&gt;    -91 Missing</span></span></code></pre></div>
<p>The value <code>-92</code> is now properly labelled, and can further
be declared missing. Such declarations do not necessarily have to use
the main function <code class="sourceCode r"><span class="fu">declared</span>()</code>, due to
the separate functions <code class="sourceCode r"><span class="fu">miss