Stefan Milton Bache <stefan@stefanbache.dk> and
    Hadley Wickham <h.wickham@gmail.com>

Provides a mechanism for chaining commands with a
    new forward-pipe operator, %>%. This operator will forward a
    value, or the result of an expression, into the next function
    call/expression. There is flexible support for the type
    of right-hand side expressions. For more information, see
    package vignette.
    To quote Rene Magritte, "Ceci n'est pas un pipe."

Linear and Nonlinear Mixed Effects Models

c(person("José", "Pinheiro", role = "aut", comment = "S version"),
             person("Douglas", "Bates", role = "aut", comment = "up to 2007"),
             person("Saikat", "DebRoy", role = "ctb", comment = "up to 2002"),
             person("Deepayan", "Sarkar", role = "ctb", comment = "up to 2005"),
             person("EISPACK authors", role = "ctb", comment = "src/rs.f"),
	     person("R-core", email = "R-core@R-project.org",
                    role = c("aut", "cre")))

Fit and compare Gaussian linear and nonlinear mixed-effects models.

José Pinheiro [aut] (S version),
  Douglas Bates [aut] (up to 2007),
  Saikat DebRoy [ctb] (up to 2002),
  Deepayan Sarkar [ctb] (up to 2005),
  EISPACK authors [ctb] (src/rs.f),
  R-core [aut, cre]

Roger Bivand, Friedrich Leisch and Martin Maechler

Functions for import, export, plotting and other
        manipulations of bitmapped images.

General network (HTTP/FTP/...) client interface for R

libcurl (version 7.14.0 or higher)
http://curl.haxx.se. On Linux systems, you will often have to
explicitly install libcurl-devel to have the header files and
the libcurl library.

The package allows one to compose general HTTP requests
        and provides convenient functions to fetch URIs, get & post
        forms, etc. and process the results returned by the Web server.
        This provides a great deal of control over the HTTP/FTP/...
        connection and the form of the request while providing a
        higher-level interface than is available just using R socket
        connections.  Additionally, the underlying implementation is
        robust and extensive, supporting FTP/FTPS/TFTP (uploads and
        downloads), SSL/HTTPS, telnet, dict, ldap, and also supports
        cookies, redirects, authentication, etc.