assertthat: Easy Pre and Post Assertions

assertthat is 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 they've done wrong.

Getting started

Package details

AuthorHadley Wickham [aut, cre]
MaintainerHadley Wickham <[email protected]>
LicenseGPL-3
Version0.2.0
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:
install.packages("assertthat")

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assertthat documentation built on May 29, 2017, 8:41 p.m.