car, data.table, digest, dplyr, ggplot2, htmltools, knitr,
lubridate, qwraps2 (>= 0.5.0), scales, testthat
car, data.table, digest, dplyr, ggplot2, htmltools, knitr,
lubridate, qwraps2 (>= 0.6.0), scales, testthat