covr, crayon, magrittr, methods, pillar, rmarkdown, testthat
(>= 2.0.0)

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

A rewrite of the graphics layout capabilities, plus some
  support for interaction.

c(person("Rich", "Calaway", role="cre", email="richcala@microsoft.com"),
             person("Revolution", "Analytics", role=c("aut", "cph")),
			 person("Steve", "Weston", role="aut"))

Support for iterators, which allow a programmer to traverse
        through all the elements of a vector, list, or other collection
        of data.

Rich Calaway [cre],
  Revolution Analytics [aut, cph],
  Steve Weston [aut]

Access the RStudio API (if available) and provide informative error
    messages when it's not.

c(
    person("Kevin", "Ushey", role = c("aut", "cre"), email = "kevin@rstudio.com"),
    person("JJ", "Allaire", role = c("aut"), email = "jj@rstudio.com"),
    person("Hadley", "Wickham", role = c("aut"), email = "hadley@rstudio.com"),
    person("Gary", "Ritchie", role = c("aut"), email = "gary@rstudio.com"),
    person(family = "RStudio", role = "cph")
    )

Kevin Ushey [aut, cre],
  JJ Allaire [aut],
  Hadley Wickham [aut],
  Gary Ritchie [aut],
  RStudio [cph]

c(
    person("Ramnath", "Vaidyanathan", role = c("aut", "cph")),
    person("Yihui", "Xie", role = c("aut")),
    person("JJ", "Allaire", role = c("aut")),
    person("Joe", "Cheng", role = c("aut", "cre"), email = "joe@rstudio.com"),
    person("Kenton", "Russell", role = c("aut", "cph")),
    person(family = "RStudio", role = "cph")
    )

A framework for creating HTML widgets that render in various
    contexts including the R console, 'R Markdown' documents, and 'Shiny'
    web applications.

grDevices, htmltools (>= 0.3), jsonlite (>= 0.9.16), yaml

Ramnath Vaidyanathan [aut, cph],
  Yihui Xie [aut],
  JJ Allaire [aut],
  Joe Cheng [aut, cre],
  Kenton Russell [aut, cph],
  RStudio [cph]

Routines for simple graphs and network analysis. It can
  handle large graphs very well and provides functions for generating random
  and regular graphs, graph visualization, centrality methods and much more.