Cache the results of a function so that when you
    call it again with the same arguments it returns the pre-computed
    value.

digest, aws.s3, covr, googleAuthR, googleCloudStorageR, httr,
testthat

Hadley Wickham [aut],
  Jim Hester [aut, cre],
  Winston Chang [aut],
  Kirill Müller [aut],
  Daniel Cook [aut],
  Mark Edmondson [ctb]

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("Siem", "Heisterkamp", role = "ctb", comment = "Author fixed sigma"),
             person("Bert", "Van Willigen",role = "ctb", comment = "Programmer fixed sigma"),
	     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),
  Siem Heisterkamp [ctb] (Author fixed sigma),
  Bert Van Willigen [ctb] (Programmer fixed sigma),
  R-core [aut, cre]

c(person("Deepayan", "Sarkar", role = c("aut", "cre"),
	            email = "deepayan.sarkar@r-project.org",
		    comment = c(ORCID = "0000-0003-4107-1553")),
              person("Felix", "Andrews", role = "ctb"),
	      person("Kevin", "Wright", role = "ctb", comment = "documentation"),
	      person("Neil", "Klepeis", role = "ctb"),
              person("Paul", "Murrell", role = "ctb", email = "paul@stat.auckland.ac.nz"))

A powerful and elegant high-level data visualization
  system inspired by Trellis graphics, with an emphasis on
  multivariate data. Lattice is sufficient for typical graphics needs,
  and is also flexible enough to handle most nonstandard requirements.
  See ?Lattice for an introduction.