Test environments

local R installation, R 4.1.0 (Windows)
R-devel, on Win-builder
GitHub actions:
- Mac OS x 10.15.7 19H1419, R 4.1.2
- Windows Server 2019 x64 latest, R 4.1.2
- Ubuntu 20.04.3 LTS, R-devel 2021-11-04 r81137
- Ubuntu 20.04.3 LTS, R 4.1.2
r-hub:
- Ubuntu Linux 20.04.1 LTS, R-release, GCC
- Windows Server 2008 R2 SP1, R-devel, 32/64 bit
- Fedora Linux, r-devel, clang, gfortran

R CMD check results

0 errors | 0 warnings | 1 note

This is a new submission.
NOTEs for 'possibly misspelled words in DESCRIPTION' have all been checked and both ('CUSUM' and 'tibble') are valid.