grDevices, methods, utils, graph, Rgraphviz, grid, ggplot2,
magrittr, car, dplyr (>= 0.8.0.1), tidyr
grDevices, methods, utils, grid, graph, Rgraphviz, ggplot2,
magrittr, dplyr (>= 0.8.0.1), tidyr
DBI, grDevices, methods, utils, graph, Rgraphviz, grid,
ggplot2, magrittr, car, dplyr, tidyr, knitr, pander