Data Checker for Validating Data Frames Against Defined Schema R package data.checker version 2.0.0 Validates data frames against a defined schema. Produces a report of the checks performed and any issues found, with index and entry value where appropriate. Backend checks are performed using pointblank Richard Iannone et al (2025) <doi:10.32614/CRAN.package.pointblank>. Software Depends: R (>= 4.1.0) Imports: dplyr, glue, jsonlite, knitr, lubridate, magrittr, tools, yaml, tomledit, utils, cli, rlang, pointblank, tidyselect, tidyr, stringr, hms Suggests: rmarkdown, testthat (>= 3.0.0) Analysis Standards and Pipelines Team (ONS) <ASAP@ons.gov.uk> Comprehensive R Archive Network (CRAN) Crown Copyright [cph], Analysis Standards and Pipelines Team (ONS) [cre, aut] MIT + file LICENSE (https://CRAN.R-project.org/package=data.checker/LICENSE) 2026-06-08 application/tgz https://CRAN.R-project.org/package=data.checker doi:10.32614/CRAN.package.data.checker