Stephan Wahlbrink, Tobias Verbeke, low-level R binding based on the JRI library by Simon Urbanek

Server and R interface implementation for the high-level Java-R library RJ.  The
  package also provides callback functions for StatET.  It is shipped with an adapted version of
  the JRI library.
  The package can be used only when R was loaded via RJ.

Cross-Platform File System Operations Based on 'libuv'

c(
    person("Jim", "Hester", email = "james.f.hester@gmail.com", role = c("aut", "cre")),
    person("Hadley", "Wickham", , "hadley@rstudio.com", "aut"),
    person("libuv project contributors", role = "cph", comment = "libuv library"),
    person("Joyent, Inc. and other Node contributors", role = "cph", comment = "libuv library"),
    person("RStudio", role = c("cph", "fnd"))
    )

A cross-platform interface to file system operations, built on
  top of the 'libuv' C library.

testthat, covr, pillar (>= 1.0.0), tibble (>= 1.1.0), crayon,
rmarkdown, knitr, withr, spelling, vctrs (>= 0.3.0)

Jim Hester [aut, cre],
  Hadley Wickham [aut],
  libuv project contributors [cph] (libuv library),
  Joyent, Inc. and other Node contributors [cph] (libuv library),
  RStudio [cph, fnd]

c(person(given = "Erich", family = "Neuwirth", role = c("aut",
        "cre"), email = "erich.neuwirth@univie.ac.at"))

Provides color schemes for maps (and other graphics)
        designed by Cynthia Brewer as described at http://colorbrewer2.org

c(person(given = "Hadley",
             family = "Wickham",
             role = c("aut", "cre"),
             email = "hadley@rstudio.com"),
      person(given = "RStudio",
             role = "cph"))

Useful tools for working with HTTP organised by
    HTTP verbs (GET(), POST(), etc). Configuration functions make it easy
    to control additional request components (authenticate(),
    add_headers() and so on).

curl (>= 3.0.0), jsonlite, mime, openssl (>= 0.8), R6

covr, httpuv, jpeg, knitr, png, readr, rmarkdown, testthat
(>= 0.8.0), xml2

Hadley Wickham [aut, cre],
  RStudio [cph]