The authors would like to thank Mitchell O’Hara-Wild for many discussions on the software development and Davis Vaughan for contributing ideas on rolling window functions. We also thank Stuart Lee for the feedback on this manuscript. We are grateful for anonymous reviewers for helpful feedback that has led to many improvements in the paper. This article was created with knitr (Xie 2015) and R Markdown (Xie, Allaire, and Grolemund 2018). The project’s Github repository houses all materials required to reproduce this article and a history of the changes.