Verbose Assertions for Tabular Data (Data.frames and Data.tables) R package assertable version 0.2.8 Simple, flexible, assertions on data.frame or data.table objects with verbose output for vetting. While other assertion packages apply towards more general use-cases, assertable is tailored towards tabular data. It includes functions to check variable names and values, whether the dataset contains all combinations of a given set of unique identifiers, and whether it is a certain length. In addition, assertable includes utility functions to check the existence of target files and to efficiently import multiple tabular data files into one data.table. Software Depends: R (>= 3.1.0) Imports: data.table, parallel Suggests: knitr, rmarkdown Grant Nguyen <grant.nguyen@gmail.com> Comprehensive R Archive Network (CRAN) Grant Nguyen [aut, cre], Max Czapanskiy [ctb] GPL-3 2021-01-27 application/tgz https://CRAN.R-project.org/package=assertable doi:10.32614/CRAN.package.assertable