<pre class="sourceCode r"><code><span><span class="fu">rm1stchar</span><span class="op">(</span><span class="va">x</span>, n <span class="op">=</span> <span class="fl">1</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>
    <dl><dt>x</dt>
<dd><p>Character, e.g, each element may represent the name of a single gauging station.</p></dd>

  <dt>n</dt>
<dd><p>nume