ay to convey “use all of the data to guess the column types”. (This is one of several reasons to prefer readr &gt;= 2.0.0.)</p>
<p>Let’s set up a slightly tricky file, so we can demonstrate different approaches. The column <code>x</code> is mostly empty, but has some numeric data at the very end, in row 1001.</p>
<div class="sourceCode" id="cb3"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>tricky_dat <span class="ot">&lt;-<