Gamma and Exponential Generalized Linear Models with Elastic Net Penalty R package RPEGLMEN version 1.1.4 Implements the fast iterative shrinkage-thresholding algorithm (FISTA) algorithm to fit a Gamma distribution with an elastic net penalty as described in Chen, Arakvin and Martin (2018) <doi:10.48550/arXiv.1804.07780>. An implementation for the case of the exponential distribution is also available, with details available in Chen and Martin (2018) <doi:10.2139/ssrn.3085672>. Software Imports: Rcpp (>= 1.0.3), RPEIF LinkingTo: Rcpp, RcppEigen Suggests: R.rsp, testthat, PerformanceAnalytics Anthony Christidis <anthony.christidis@stat.ubc.ca> Comprehensive R Archive Network (CRAN) Anthony Christidis [aut, cre], Xin Chen [aut], Daniel Hanson [aut] GPL (>= 2) 2025-12-19 application/tgz https://CRAN.R-project.org/package=RPEGLMEN doi:10.32614/CRAN.package.RPEGLMEN