Data Sets

Usage

data(..., list = character(0), package = c(.packages(),.Autoloaded),
     lib.loc = .lib.loc)
show.data(package = c(.packages(),.Autoloaded), lib.loc = .lib.loc)

Arguments

... a sequence of names or character strings
list a character vector
package a name or character vector giving the packages to look into for data sets. By default, all packages in the search path are used.
lib.loc a character vector of directory names of R libraries. Defaults to all libraries currently known.

Description

data loads or lists via show.data the available data sets. The data sets to be loaded can be specified as a sequence of names or character strings, or as the character vector list, or as both. If no data sets are specified or show.data is called directly, the available data sets are displayed.

Details

Currently, four formats of data files are supported:

  1. files ending ".RData" or ".rda" are load()ed.
  2. files ending ".R" or ".r" are source()d in, with the R working directory changed temporarily to the directory containing the respective file.
  3. files ending ".tab" or ".txt" are read using read.table(..., header = TRUE), and hence result in a data.frame.
  4. files ending ".csv" are read using read.table(..., header = TRUE, sep=";"), and also result in a data.frame.

Value

A character vector of all data sets specified, an empty character vector if none were specified.

See Also

help for obtaining documentation on data sets.

Examples

data()                       # list all available data sets
data(package = base)         # list the data sets in the base package
data(USArrests, "VADeaths")  # load the data sets `USArrests and `VADeaths'
help(USArrests)              # give information on data set `USArrests'

[Package Contents]