>=dev-lang/R-3.5
sci-CRAN/igraph
sci-CRAN/geosphere
sci-CRAN/sf

r_suggests_devtools?
      ( sci-CRAN/devtools )

r_suggests_knitr?
      ( sci-CRAN/knitr )

r_suggests_maps?
      ( sci-CRAN/maps )

r_suggests_rmarkdown?
      ( sci-CRAN/rmarkdown )

r_suggests_roxygen2?
      ( sci-CRAN/roxygen2 )

r_suggests_spdata?
      ( sci-CRAN/spData )

r_suggests_testthat?
      ( sci-CRAN/testthat )

r_suggests_tmaptools?
      ( sci-CRAN/tmaptools )

dev-lang/R:=