Multiply Robust Estimation in Causal Survival Analysis with Treatment Noncompliance R package mrPStrata version 0.1.0 Provides multiply robust estimators of principal survival causal effects among always-takers, compliers, and never-takers in studies with treatment noncompliance. The methods are based on Cheng et al. (2026) <doi:10.1214/25-AOAS2117>. Software Depends: R (>= 2.10) Imports: dplyr, ggplot2, magrittr, progress, survival Suggests: knitr, rmarkdown, testthat (>= 3.0.0) Chao Cheng <chaoc@wustl.edu> Comprehensive R Archive Network (CRAN) Chao Cheng [aut, cre], Bo Liu [aut], Fan Li [aut], Fan Li [aut] GPL (>= 2) 2026-05-12 application/tgz https://CRAN.R-project.org/package=mrPStrata doi:10.32614/CRAN.package.mrPStrata