Modern Data Summaries and Diagnostic Reports for Statistical Analysis R package DataSum version 1.0.0 Provides robust, NA-aware data summaries, variable diagnostics, normality decisions, missingness and outlier checks, and reproducible diagnostic report scaffolding for statistical analysis. DataSum is designed for researchers, professors, scientists, and analysts who need trustworthy first-pass insight into tabular data before modeling or publication. Software Depends: R (>= 4.1.0) Imports: nortest Suggests: knitr, quarto, rmarkdown, shiny, testthat (>= 3.0.0) Uzair Javid Khan <uzairkhan11w@gmail.com> Comprehensive R Archive Network (CRAN) Uzair Javid Khan [aut, cre], Immad Ahmad Shah [aut], Sukhdev Mishra [aut] GPL (>= 3) 2026-07-13 application/tgz https://CRAN.R-project.org/package=DataSum doi:10.32614/CRAN.package.DataSum