>=dev-lang/R-3.1.2
sci-CRAN/tibble

r_suggests_covr?
      ( sci-CRAN/covr )

r_suggests_dplyr?
      ( sci-CRAN/dplyr )

r_suggests_knitr?
      ( sci-CRAN/knitr )

r_suggests_lubridate?
      ( sci-CRAN/lubridate )

r_suggests_purrr?
      ( sci-CRAN/purrr )

r_suggests_rmarkdown?
      ( sci-CRAN/rmarkdown )

r_suggests_stringi?
      ( sci-CRAN/stringi )

r_suggests_stringr?
      ( sci-CRAN/stringr )

r_suggests_testthat?
      ( sci-CRAN/testthat )

dev-lang/R:=