I mused over Test Driven Analysis on this blog before, but it was Richard Pugh’s talk on SAS to R Migration at LondonR last week that brought the topic back into my mind and clarified a few things.
Rich’s presentation focused on the challenge of how to ensure that the new system ® would provide the same answers as the legacy system (SAS).
This is when it clicked with me: My brain is just another system as well.
At the last LondonR meeting Francine Bennett from Mastodon C shared some of her experience and findings from an analysis of a large prescriptions data set of the UK’s national health service (NHS). However, it was her last slide, which I found the most thought provoking. It asked for the definition of the following term:
Test-driven analysis?Francine explained that test driven development (TDD) is a concept often used in software development for quality assurance and she wondered if a similar approach could be also used for data analysis.