Weighted Cumulative Exposure Models R package WCE version 1.0.4 A flexible method for modeling cumulative effects of time-varying exposures, weighted according to their relative proximity in time, and represented by time-dependent covariates. The current implementation estimates the weight function in the Cox proportional hazards model. The function that assigns weights to doses taken in the past is estimated using cubic regression splines. Software Depends: R (>= 3.5.0) Imports: plyr, survival, splines Marie-Pierre Sylvestre <marie-pierre.sylvestre@umontreal.ca> Comprehensive R Archive Network (CRAN) Marie-Pierre Sylvestre [aut, cre] (ORCID: <https://orcid.org/0000-0001-5803-4615>), Marie-Eve Beauchamp [ctb], Ryan Patrick Kyle [ctb], Michal Abrahamowicz [ctb] GPL-2 GPL-3 2025-09-01 application/tgz https://CRAN.R-project.org/package=WCE doi:10.32614/CRAN.package.WCE