Tools for Assessing Estimability of Linear Predictions R package estimability version 2.0.0 Provides tools for determining estimability of linear functions of regression coefficients, and 'epredict' methods that handle non-estimable cases correctly. Estimability theory is discussed in many linear-models textbooks including Chapter 3 of Monahan, JF (2008), "A Primer on Linear Models", Chapman and Hall (ISBN 978-1-4200-6201-4). Software Depends: stats, R(>= 4.1.0) Suggests: knitr, rmarkdown Michael Dumelle <Dumelle.Michael@epa.gov> Comprehensive R Archive Network (CRAN) Russell Lenth [aut, cph], Michael Dumelle [cre, aut] GPL (>= 3) 2026-06-26 application/tgz https://CRAN.R-project.org/package=estimability doi:10.32614/CRAN.package.estimability