em>verbs</em>:</p>
<ul>
<li><code>filter()</code>: Pick rows with matching criteria</li>
<li><code>select()</code>: Pick columns with matching criteria</li>
<li><code>arrange()</code>: Reorder rows</li>
<li><code>mutate()</code>: Create new variables</li>
<li><code>summarize()</code> or <code>summarise()</code>: Sum up variables</li>
</ul>
<p>All of these functions follow a consistent syntax: <code>verb(data, condition)</code>. Note that we specify the data and columns individually and that within the tidyv