by downloading them from <a href="http://www.rstudio.com/ide">RStudio</a>.</p>
<div id="r-packages" class="section level2">
<h2><span class="header-section-number">C.1</span> R Packages</h2>
<p>Package authors occasionally release new versions of their packages to add functions, fix bugs, or improve performance. The <code>update.packages</code> command checks whether you have the most current version of a package and installs the most current version if you do not. The syntax for <code>update.packages</code