Transparent and Assisted Linear Modeling Engine R package OLSengine version 1.0.0 A transparent, modular, and base-R implemented statistical engine for linear regression (OLS), analysis of variance (ANOVA), and logistic regression (Logit). Designed under the principle of "assisted simplicity", it features an integrated methodological "customs" (Aduana) that automatically audits mathematical assumptions (e.g., multicollinearity, heteroskedasticity, normality, and perfect separation) and outputs publication-ready, APA-formatted tables. It deliberately avoids hidden heuristics and external dependencies, ensuring computational transparency and reproducibility for applied research. Software Suggests: knitr, rmarkdown Manuel Soto-Pérez <msoto@up.edu.mx> Comprehensive R Archive Network (CRAN) Manuel Soto-Pérez [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=OLSengine/LICENSE) 2026-05-14 application/tgz https://CRAN.R-project.org/package=OLSengine doi:10.32614/CRAN.package.OLSengine