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(This article was first published on <strong><a href="http://blog.revolutionanalytics.com/2016/06/computerworlds-advanced-beginners-guide-to-r.html"> Revolutions</a></strong>, and kindly contributed to <a rel="nofollow" href="http://www.r-bloggers.com/">R-bloggers)</a> </div>
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<p><a target="_blank" href="http://www.computerworld.com/resources/106345/advanced-beginners-guide-to-r.htmlhttp://www.computerworld.com/resources/106345/advanced-beginners-guide-to-r.html"><img title="Advanced beginners" alt="Advanced beginners" src="http://revolution-computing.typepad.com/.a/6a010534b1db25970b01b7c874d679970b-250wi"></a>Many newcomers to R got their start learning the language with <a target="_blank" href="http://blog.revolutionanalytics.com/2013/06/computerworld-guide-to-r.html">Computerworld's Beginner's Guide to R</a>, a 6-part introduction to the basics of the language. Now, budding R users who want to take their skills to the next level have a new guide to help them: <a target="_blank" href="http://www.computerworld.com/resources/106345/advanced-beginners-guide-to-r.html">Computerword's Advanced Beginner's Guide to R</a>. Written by <a target="_blank" href="https://plus.google.com/+SharonMachlis/about">Sharon Machlis</a>, author of the prior Beginner's guide and regular reporter of R news at Computerworld, this new 72-page guide dives into some trickier topics related to R: extracting data via API, data wrangling, and data visualization. </p>
<p>On the data wrangling front, the guide provides some recipes for handling messy data. You'll learn how to transform data and add the resulting data as a new column to a data frame. There's also an extended look at restructuring data: transforming &quot;wide&quot; data to &quot;long&quot; data, and vice versa.</p>
<p>For visualizing data, there's a basic intro to the ggplot2 package and its grammar of graphics. There's also an in-depth tutorial on creating choropleths: geographics maps with regions shaded by data values.</p>
<p>And as an in-dept example of importing data, you'll learn how to use the Google Analytics API to download and prepare data on traffic to your website.</p>
<p>Finally, don't miss the comprehensive index of R packages for data import, data wrangling, and visualization.</p>
<p>To download the 72-page PDF (free by providing your email address) visit Computerworld at the link below.</p>
<p>Computerworld Crash Course: <a target="_blank" href="http://www.computerworld.com/resources/106345/advanced-beginners-guide-to-r.html">Advanced Beginner's Guide to R</a></p>
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<div>To <strong>leave a comment</strong> for the author, please follow the link and comment on their blog: <strong><a href="http://blog.revolutionanalytics.com/2016/06/computerworlds-advanced-beginners-guide-to-r.html"> Revolutions</a></strong>.</div>
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