dplyr, httr, ncdf4, readr, sp, stats, utils
ggplot2, ggfortify, knitr, lubridate, mapdata, RColorBrewer,
reshape2, testthat, xts
DT, ggplot2, knitr, lubridate, mapdata, RColorBrewer,
reshape2
DT, ggplot2, knitr, lubridate, mapdata, reshape2, rmarkdown,
webshot