Survival Analysis for Recurrent Event Data R package survrec version 2.0.0 Estimation of the survival function of inter-occurrence times for recurrent event data, using the estimators of Peña, Strawderman and Hollander (2001) <doi:10.1198/016214501753381922> and Wang and Chang (1999) <doi:10.1080/01621459.1999.10473831>, and maximum likelihood estimation under a gamma frailty model. Includes bootstrap comparison of survival quantiles between groups. Software Depends: R (>= 3.5.0) Imports: Rcpp, boot, ggplot2, graphics, grDevices, rlang, stats, utils LinkingTo: Rcpp Suggests: testthat (>= 3.0.0), knitr, rmarkdown, BiocStyle Dolors Pelegri-Siso <dolors.pelegri@isglobal.org> Comprehensive R Archive Network (CRAN) Dolors Pelegri-Siso [aut, cre] (ORCID: <https://orcid.org/0000-0002-5993-3003>), Juan R. González [aut], Edsel A. Peña [aut], Robert L. Strawderman [aut] GPL (>= 2) 2026-09-22 application/tgz https://CRAN.R-project.org/package=survrec doi:10.32614/CRAN.package.survrec