virtual/MASS
>=sci-CRAN/Rcpp-0.12.17
>=sci-CRAN/ggplot2-2.2.1
>=sci-CRAN/rstan-2.17.3
>=dev-lang/R-3.1.0
>=sci-CRAN/ggthemes-3.5.0
>=sci-CRAN/mvtnorm-1.0.8

r_suggests_knitr?
      ( >=sci-CRAN/knitr-1.20 )

r_suggests_rmarkdown?
      ( >=sci-CRAN/rmarkdown-1.10 )

r_suggests_roxygen2?
      ( >=sci-CRAN/roxygen2-6.0.1 )

r_suggests_testthat?
      ( >=sci-CRAN/testthat-2.0.0 )

dev-lang/R:=