An Implementation of the Additive Polynomial Design Matrix R package apdesign version 1.0.0 An implementation of the additive polynomial (AP) design matrix. It constructs and appends an AP design matrix to a data frame for use with longitudinal data subject to seasonality. Software Depends: R (>= 3.2.3) Imports: Matrix (>= 1.2) Suggests: testthat Tyler Matta <tyler.matta@gmail.com> Comprehensive R Archive Network (CRAN) Tyler Matta [aut, cre], Quinn Lathrop [ctb], Yeow Meng Thum [ctb] GPL-3 2016-11-15 application/tgz https://CRAN.R-project.org/package=apdesign doi:10.32614/CRAN.package.apdesign