Regularized Exponentially Tilted Empirical Likelihood R package retel version 0.1.1 Implements the regularized exponentially tilted empirical likelihood method. Details of the method are given in Kim, MacEachern, and Peruggia (2023) <doi:10.48550/arXiv.2312.17015>. This work was supported by the U.S. National Science Foundation under Grants No. SES-1921523 and DMS-2015552. Software Depends: R (>= 4.1.0) Imports: checkmate, Matrix, matrixcalc, nloptr Suggests: melt, spelling Eunseop Kim <markean@pm.me> Comprehensive R Archive Network (CRAN) Eunseop Kim [aut, cph, cre] (ORCID: <https://orcid.org/0009-0000-2138-788X>), Steven MacEachern [ctb, ths], Mario Peruggia [ctb, ths] GPL (>= 3) 2025-07-27 application/tgz https://CRAN.R-project.org/package=retel doi:10.32614/CRAN.package.retel en-US