Dirk Eddelbuettel, Romain Francois, JJ Allaire, Kevin Ushey, Qiang Kou,
 Nathan Russell, Douglas Bates and John Chambers

The 'Rcpp' package provides R functions as well as C++ classes which
 offer a seamless integration of R and C++. Many R data types and objects can be
 mapped back and forth to C++ equivalents which facilitates both writing of new
 code as well as easier integration of third-party libraries. Documentation
 about 'Rcpp' is provided by several vignettes included in this package, via the
 'Rcpp Gallery' site at <http://gallery.rcpp.org>, the paper by Eddelbuettel and
 Francois (2011, <doi:10.18637/jss.v040.i08>), the book by Eddelbuettel (2013,
 <doi:10.1007/978-1-4614-6868-4>) and the paper by Eddelbuettel and Balamuta (2018,
 <doi:10.1080/00031305.2017.1375990>); see 'citation("Rcpp")' for details.

tinytest, inline, rbenchmark, pkgKitten (>= 0.1.2)

Please send questions and comments regarding Rcpp to
rcpp-devel@lists.r-forge.r-project.org

Pretty, Human Readable Formatting of Quantities

Pretty, human readable formatting of quantities.
    Time intervals: '1337000' -> '15d 11h 23m 20s'.
    Vague time intervals: '2674000' -> 'about a month ago'.
    Bytes: '1337' -> '1.34 kB'.

S original by Steve Dutky <sdutky@terpalum.umd.edu> initial R
        port and extensions by Martin Maechler; revised and modified
        by Steve Dutky

Functions for bitwise operations on integer vectors.

Tools for package development, administration and documentation.

codetools, methods, xml2, curl, commonmark

Gábor Csárdi [aut, cre], Rich FitzJohn [aut]

Configurable Progress bars, they may include percentage,
    elapsed time, and/or the estimated completion time. They work in
    terminals, in 'Emacs' 'ESS', 'RStudio', 'Windows' 'Rgui' and the
    'macOS' 'R.app'. The package also provides a 'C++' 'API', that works
    with or without 'Rcpp'.

Interface to BioMart databases (i.e. Ensembl)

c(person("Steffen", "Durinck", role = c("aut"), 
            email = "biomartdev@gmail.com"), 
        person("Wolfgang", "Huber", role="aut"),
        person("Sean", "Davis", role="ctb", email = "sdavis2@mail.nih.gov"),
        person("Francois", "Pepin", role="ctb"),
        person(given = "Vince S", family = "Buffalo", role="ctb"),
        person("Mike", "Smith", role=c("ctb", "cre"), 
            email = "grimbough@gmail.com"))