nlme, lattice, graphics, stats, tools, utils
nlme, lattice, graphics, stats, tools, utils, parallel
nlme, lattice, graphics, methods, stats, tools, utils,
parallel
nlme, lattice, graphics, methods, stats, tools, utils,
parallel, Rcpp (>= 0.12.0)
nlme, lattice, graphics, methods, stats, utils, parallel, Rcpp
(>= 0.12.0), digest