Piecewise Constant Plus Smooth Regression R package PCpluS version 1.0.1 Allows for nonparametric regression where one assumes that the signal is given by the sum of a piecewise constant function and a smooth function. More precisely, it implements the estimator PCpluS (piecewise constant plus smooth regression estimator) from Pein and Shah (2025) <doi:10.48550/arXiv.2112.03878>. Software Depends: R (>= 3.0.2) Imports: Rcpp (>= 0.12.3), changepoint, methods, Matrix LinkingTo: Rcpp (>= 0.12.3), RcppEigen Suggests: testthat (>= 1.0.0), glmnet Pein Florian <f.pein@lancaster.ac.uk> Comprehensive R Archive Network (CRAN) Pein Florian [aut, cre] GPL-3 2025-03-11 application/tgz https://CRAN.R-project.org/package=PCpluS doi:10.32614/CRAN.package.PCpluS