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Learning R Programming

Learning R Programming

By : Ren
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Learning R Programming

Learning R Programming

By: Ren

Overview of this book

R is a high-level functional language and one of the must-know tools for data science and statistics. Powerful but complex, R can be challenging for beginners and those unfamiliar with its unique behaviors. Learning R Programming is the solution - an easy and practical way to learn R and develop a broad and consistent understanding of the language. Through hands-on examples you'll discover powerful R tools, and R best practices that will give you a deeper understanding of working with data. You'll get to grips with R's data structures and data processing techniques, as well as the most popular R packages to boost your productivity from the offset. Start with the basics of R, then dive deep into the programming techniques and paradigms to make your R code excel. Advance quickly to a deeper understanding of R's behavior as you learn common tasks including data analysis, databases, web scraping, high performance computing, and writing documents. By the end of the book, you'll be a confident R programmer adept at solving problems with the right techniques.
Table of Contents (16 chapters)
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Inspecting the environment


In R, every expression is evaluated within a specific environment. An environment is a collection of symbols and their bindings. When we bind a value to a symbol, call a function, or refer to a name, R will find the symbols in the current environment. If you type commands in the RStudio console, your commands are evaluated in the Global Environment.

For example, when we start a fresh R session in a terminal or RStudio, we start working within an empty global environment. In other words, there is no symbol defined in this environment. If we run x <- c(1, 2, 3), the numeric vector c(1, 2, 3) is bound to symbol x in the global environment. Then, the global environment has one binding that maps x to the vector c(1, 2, 3). In other words, if you evaluate x, then you will get its value.

Inspecting existing symbols

In addition to manipulating vectors and lists as we did in the previous chapter, we need to know some basic functions to inspect and manipulate our working...

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Learning R Programming
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