by Dr. David Wilkins | Released April 2018 | ISBN: 9781789137088

Explore various solutions to tackle common obstacles in R Programming language.About This VideoLearn to troubleshoot R problems across a variety of domainsFind practical solutions with explanations for why they workExpand your mastery of the R programming languageIn DetailR is a popular programming language for machine learning, statistics, and data analysis. While powerful and expressive, R is not without its pitfalls and novice developers may find themselves spending much of their time troubleshooting bugs and edge cases rather than getting on with the task at hand.. This course will prepare R programmers for problems they are likely to encounter and teach them how to overcome these obstacles.The solutions are grouped into four categories and structured as questions that an R programmer might ask (or search for). Each video provides a practical solution to one of these questions. We begin by looking at common difficulties in manipulating data frames, followed by troubleshooting problems that arise from some of the more confusing building blocks of the core R language. Next, you will learn practical techniques for importing and exporting data, and finally resolve common issues when drawing graphics with ggplot2.The questions and solutions provided in this course are based on some of the most common internet searches and forum posts for R troubleshooting, and thus represent problems almost all beginner and intermediate R programmers are likely to encounter. Taking a problem-solution approach, the course will upgrade your R skills and help you save time and effort when writing R. Show and hide more

1. Chapter 1 : The R Language Demystified
   • The Course Overview 00:02:16
   • How Do I Handle NA, NULL, and NaN Values? 00:05:34
   • How Do I Know What Values Will Result from Coercion? 00:05:22
   • How Do I Test If Values Are Equal? 00:04:47
   • How Do I Use the ‘Apply’ Family of Functions? 00:04:13
2. Chapter 2 : Investigating New Packages
   • How Do I Get Data from an Object? 00:07:31
   • How Do I Call Functions from Package? 00:03:54
3. Chapter 3 : Working with Data Frames
   • How Do I Join Two Data Frames? 00:06:13
   • How Do I Subset from a Data Frame? 00:07:25
   • How Do I Reshape a Data Frame? 00:04:19
   • How Do I Remove a Column from a Data Frame? 00:01:29
   • How Do I Store a List in a Data Frame? 00:09:30
4. Chapter 4 : Input and Output
   • How Do I Read and Write Microsoft Excel Files? 00:02:18
   • How Do I Write Text to a File Line-by-Line? 00:03:34
   • How Do I Export a Data Frame as a PDF? 00:02:46
   • How Do I Import Data from the Internet? 00:06:38
5. Chapter 5 : Discovering ggplot2
   • How Do I Change the Order of Bars Or Axis Ticks? 00:05:09
   • How Do I Plot More Than One X Or Y Axis? 00:04:43
   • How Do I Move, Hide, Reorder Or Relabel Legends? 00:03:38
   • How Do I Add Useful Text to a Plot? 00:08:46
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