Estimation of the Weights Attached to the Two-Way Fixed Effects Regressions R package TwoWayFEWeights version 2.1.0 Computes the implicit weights attached to two-way fixed effects regressions, as well as summary measures of these regressions' robustness to heterogeneous treatment effects. Based on de Chaisemartin and D'Haultfoeuille (2020) <DOI:10.1257/aer.20181169>. Software Depends: R(>= 3.5.0) Imports: data.table, cli, fixest, Rcpp (>= 1.0.7), stats, utils, haven LinkingTo: Rcpp Suggests: tinytest, devtools Anzony Quispe <anzony.quispe@gmail.com> Comprehensive R Archive Network (CRAN) Anzony Quispe [aut, cre], Diego Ciccia [aut], Felix Knau [aut], Mélitine Malezieux [aut], Doulo Sow [aut], Shuo Zhang [aut], Clément de Chaisemartin [aut], Grant McDermott [ctb] MIT + file LICENSE (https://CRAN.R-project.org/package=TwoWayFEWeights/LICENSE) 2026-05-27 application/tgz https://CRAN.R-project.org/package=TwoWayFEWeights doi:10.32614/CRAN.package.TwoWayFEWeights