haven (>= 2.2.0), igraph, readr, readxl, tcltk, stringr,
tibble, magrittr, purrr, tidyr, dplyr, rlang, lubridate
haven (>= 2.2.0), readr, readxl, stringr, tibble, magrittr,
purrr, tidyr, dplyr, rlang, lubridate
knitr, lintr, rmarkdown, testthat, tufte
knitr, lintr, rmarkdown, testthat, tufte, tcltk, igraph