stats, utils, graphics, grDevices, SMR, WriteXLS, xtable
stats, utils, graphics, grDevices, SMR, writexl, xtable,
gWidgets (>= 0.0-54), gWidgetsRGtk2, pacman
stats, utils, graphics, grDevices, SMR, writexl, xtable,
tcltk, tkrplot
stats, utils, graphics, grDevices, SMR, writexl, xtable, tcltk
tkrplot, testthat, knitr, rmarkdown, covr