Contains the core survival analysis routines, including
	     definition of Surv objects, 
	     Kaplan-Meier and Aalen-Johansen (multi-state) curves, Cox models,
	     and parametric accelerated failure time models.

Terry M Therneau [aut, cre],
  Thomas Lumley [ctb, trl] (original S->R port and R maintainer until
    2009)

c(
    person("Kirill", "Müller", , "krlmlr+r@mailbox.org", c("aut", "cre")),
    person("Hadley", "Wickham", , "hadley@rstudio.com", "aut"),
    person("Romain", "Francois", , "romain@r-enthusiasts.com", "ctb"),
    person("Jennifer", "Bryan", , "jenny@rstudio.com", "ctb"),
    person("RStudio", role = "cph")
    )

Provides a 'tbl_df' class (the 'tibble') that provides
    stricter checking and better formatting than the traditional data frame.

cli, crayon (>= 1.3.4), fansi (>= 0.4.0), methods, pillar (>=
1.3.1), pkgconfig, rlang (>= 0.3.0), utils

bench, covr, dplyr, htmltools, import, knitr, mockr,
nycflights13, rmarkdown, testthat, withr

'add.R' 'as_tibble.R' 'check-names.R' 'compat-lazyeval.R'
'compat-lifecycle.R' 'compat-name-repair.R' 'compat-purrr.R'
'tribble.R' 'deprecated.R' 'enframe.R' 'exports.R' 'glimpse.R'
'has-name.R' 'lst.R' 'msg-format.R' 'msg.R' 'new.R'
'repair-names.R' 'rownames.R' 'strrep.R' 'subsetting.R'
'tbl-df.r' 'tibble-package.R' 'tibble.R' 'type-sum.r'
'utils-format.r' 'utils.r' 'view.R' 'wrap.R' 'zzz.R'

Kirill Müller [aut, cre],
  Hadley Wickham [aut],
  Romain Francois [ctb],
  Jennifer Bryan [ctb],
  RStudio [cph]

Sets, Generalized Sets, Customizable Sets and Intervals

Data structures and basic operations for ordinary sets,
             generalizations such as fuzzy sets, multisets, and
             fuzzy multisets, customizable sets, and intervals.

c(person(given = "David", family = "Meyer", role = c("aut", "cre"), email = "David.Meyer@R-project.org"),
             person(given = "Kurt", family = "Hornik", role = c("aut")),
             person(given = "Christian", family = "Buchta", role = "ctb"))

David Meyer [aut, cre],
  Kurt Hornik [aut],
  Christian Buchta [ctb]