How to create a map with zipcode dataset? ( US Zipcode ) : <blockquote>
  <p>How to create a map in R with zipcode dataset?</p>
</blockquote>

<p><code>data &lt;- c("22313","10100","25001")</code> [example zipcode]</p>

<p><strong><em>In this moment, I have a dataset full of zipcode and I would like to print in a map and save it in pdf.</em></strong></p>

<p><strong><em>Best regards,</em></strong></p>

<p><strong><em>E.P.</em></strong></p>
