ng type_convert() is another approach however this requires an extra step (or a few extra steps) after reading in the data.
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<p>Clean up the temporary tricky csv file.</p>
<div class="sourceCode" id="cb9"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="fu">file.remove</span>(tfile)</span>
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a><span class="co">#&gt; [1] TRUE</span></span></code></pre><