assertthat: Easy Pre and Post Assertions

An extension to stopifnot() that makes it easy to declare the pre and post conditions that you code should satisfy, while also producing friendly error messages so that your users know what's gone wrong.

Getting started

Package details

AuthorHadley Wickham [aut, cre]
MaintainerHadley Wickham <>
Package repositoryView on CRAN
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assertthat documentation built on May 1, 2019, 10:25 p.m.