demo {base}R Documentation

Demonstrations of R functionality

Description

demo is a user-friendly interface to running some demonstration R scripts. demo() gives the list of available topics.

Usage

demo(topic, device = getOption("device"),
     package = .packages(), lib.loc = NULL,
     character.only = FALSE, verbose = getOption("verbose"))

Arguments

topic the topic which should be demonstrated. If omitted, the list of available topics is displayed.
device the graphics device to be used.
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, or NULL. The default value of NULL corresponds to all libraries currently known. If the default is used, the loaded packages are searched before the libraries.
character.only logical; if TRUE, use topic as character string instead of name.
verbose a logical. If TRUE, additional diagnostics are printed.

Details

If no topics are given, demo lists the available demos. The corresponding information is returned in an object of class "packageIQR". The structure of this class is experimental. In earlier versions of R, an empty character vector was returned along with listing available demos.

See Also

source which is called by demo.

Examples

demo() # for attached packages

## All available demos:
demo(package = .packages(all.available = TRUE))

demo(lm.glm)


 ch <- "scoping"
 demo(ch, character = TRUE)
[Package Contents]