Test environments local macOS install, R 4.0.3 ubuntu 16.04.6 (on travis-ci), R-devel, 4.0.2, 3.6.3 win-builder (with devtools::check_win_release()) R CMD check results There were no ERRORs, WARNINGs or NOTEs. Downstream dependencies There are no downstream dependencies of this package on CRAN.