Test environments

local Windows install, R 4.0.2
ubuntu 14.04.6 (on travis-ci), R 4.0.2
AppVeyor, R 4.0.3
Rhub
- Windows Server 2008 R2 SP1, R-devel, 32/64 bit
- Ubuntu Linux 16.04 LTS, R-release, GCC
- Fedora Linux, R-devel, clang, gfortran
win-builder (devel and release)

R CMD check results

There were no ERRORs or WARNINGs or NOTES.

There are no reverse dependencies