Testing R Code (Chapman & Hall/CRC The R Series)

Richard Cotton

  • 出版商: Chapman and Hall/CRC
  • 出版日期: 2017-01-19
  • 售價: $1,736
  • 貴賓價: 9.5$1,649
  • 語言: 英文
  • 頁數: 196
  • 裝訂: Hardcover
  • ISBN: 1498763650
  • ISBN-13: 9781498763653
  • 相關分類: R 語言

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商品描述

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!