pan></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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<p>and the results can be stripped of their attributes for cases where numeric values are needed (e.g.&nbsp;math operators and ggplot):</p>
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<div class="sourceCode cell-code" id="cb41"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb41-1"><a></a><span class="fu">as.numeric</span>(a)</span>
<span id="cb41-2"><a>