Testing R Code
Seiten
2017
Chapman & Hall/CRC (Verlag)
978-1-4987-6365-3 (ISBN)
Chapman & Hall/CRC (Verlag)
978-1-4987-6365-3 (ISBN)
Learn how to write R code with fewer bugs.
The problem with programming is that you are always one typo away from writing something silly. Likewise with data analysis, a small mistake in your model can lead to a big mistake in your results. Combining the two disciplines means that it is all too easy for a missed minus sign to generate a false prediction that you don’t spot until it’s too late. Testing is the only way to be sure that your code, and your results, are correct.
Testing R Code teaches you how to perform development-time testing using the testthat package, allowing you to ensure that your code works as intended. The book also teaches run-time testing using the assertive package; enabling your users to correctly run your code.
After beginning with an introduction to testing in R, the book explores more advanced cases such as integrating tests into R packages; testing code that accesses databases; testing C++ code with Rcpp; and testing graphics. Each topic is explained with real-world examples, and has accompanying exercises for readers to practise their skills — only a small amount of experience with R is needed to get started!
The problem with programming is that you are always one typo away from writing something silly. Likewise with data analysis, a small mistake in your model can lead to a big mistake in your results. Combining the two disciplines means that it is all too easy for a missed minus sign to generate a false prediction that you don’t spot until it’s too late. Testing is the only way to be sure that your code, and your results, are correct.
Testing R Code teaches you how to perform development-time testing using the testthat package, allowing you to ensure that your code works as intended. The book also teaches run-time testing using the assertive package; enabling your users to correctly run your code.
After beginning with an introduction to testing in R, the book explores more advanced cases such as integrating tests into R packages; testing code that accesses databases; testing C++ code with Rcpp; and testing graphics. Each topic is explained with real-world examples, and has accompanying exercises for readers to practise their skills — only a small amount of experience with R is needed to get started!
Richard Cotton
Introduction
Run-time testing with assertive
Development-time testing with testthat
Writing easily maintainable and testable code
Integrating testing into your packages
Writing your own assertions and expectations
Answers to exercises
Erscheinungsdatum | 16.02.2017 |
---|---|
Reihe/Serie | Chapman & Hall/CRC The R Series |
Zusatzinfo | 10 Illustrations, black and white |
Sprache | englisch |
Maße | 156 x 234 mm |
Gewicht | 408 g |
Themenwelt | Mathematik / Informatik ► Informatik ► Programmiersprachen / -werkzeuge |
Mathematik / Informatik ► Informatik ► Theorie / Studium | |
Informatik ► Weitere Themen ► Hardware | |
Mathematik / Informatik ► Mathematik ► Computerprogramme / Computeralgebra | |
ISBN-10 | 1-4987-6365-0 / 1498763650 |
ISBN-13 | 978-1-4987-6365-3 / 9781498763653 |
Zustand | Neuware |
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