Advanced R, Second Edition By : Hadley Wickham
Book Excerpt :
Advanced R helps you understand how R works at a fundamental level. It is designed for R programmers who want to deepen their understanding of the language, and programmers experienced in other languages who want to understand what makes R different and special.This book will teach you the foundations of R; three fundamental programming paradigms (functional, object-oriented, and metaprogramming); and powerful techniques for debugging and optimisingyour code.By reading this book, you will learn:The difference between an object and its name, and why the distinction is importantThe important vector data structures, how they fit together, and how you can pull them apart using subsettingThe fine details of functions and environmentsThe condition system, which powers messages, warnings, and errorsThe powerful functional programming paradigm, which can replace many for loopsThe three most important OO systems: S3, S4, and R6The tidy eval toolkit for metaprogramming, which allows you to
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