doParallel, parallel, foreach, Rcpp, rlang, dplyr, ggplot2,
purrr
doSNOW, parallel, foreach, Rcpp (>= 0.12.17), dplyr, ggplot2,
purrr, magrittr, lubridate, tibble, zoo, rlang, grid, gridExtra
doSNOW, parallel, foreach, Rcpp (>= 0.12.17), dplyr, glue,
ggplot2, purrr, magrittr, lubridate, tibble, zoo, rlang, grid,
gridExtra
knitr, rmarkdown, covr, testthat, withr, gridExtra