{"product_id":"testing-r-code-book-richard-cotton-9781498763653","title":"Testing R Code","description":"\u003cp\u003e\u003cem\u003eLearn how to write R code with fewer bugs.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003eTesting 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.\u003c\/p\u003e\u003cp\u003eAfter 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!\u003c\/p\u003e","brand":"WoB","offers":[{"title":"- \/ - \/ INTERNAL","offer_id":54072205672721,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":54072205771025,"sku":"GOR015054372","price":51.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9781498763653.jpg?v=1786105249","url":"https:\/\/www.worldofbooks.com\/en-gb\/products\/testing-r-code-book-richard-cotton-9781498763653","provider":"World of Books ","version":"1.0","type":"link"}