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<h3 class="muted"><a href="/">R for data science</a> <small>by Garrett Grolemund and Hadley Wickham</small></h3>
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<h4>Contents</h4>
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<p><a href="/contribute.html">How to contribute</a></p>
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<p>© Garrett Grolemund & Hadley Wickham. Powered by <a href="http://jekyllrb.com/">jekyll</a>,
<a href="http://yihui.name/knitr/">knitr</a>, and
<a href="http://johnmacfarlane.net/pandoc/">pandoc</a>. Source
available on <a href="https://github.com/hadley/r4ds/">github</a>.
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