httr, utils, stats, plyr, tidyr, dplyr, tools
httr, jsonlite, utils, stats, plyr, tidyr, dplyr, tools, glue
httr, jsonlite, utils, stats, plyr, tidyr, dplyr, tools, glue,
magrittr
xml2, rvest, graphics, testthat, jpeg, knitr, rmarkdown,
purrr
xml2, rvest, graphics, testthat, jpeg, knitr, rmarkdown,
purrr, pbapply