demo {utils}R Documentation

Demonstrations of R Functionality


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


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


topic the topic which should be demonstrated, given as a name or literal character string, or a character string, depending on whether character.only is FALSE (default) or TRUE. If omitted, the list of available topics is displayed.
package a character vector giving the packages to look into for demos, or NULL. 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.
verbose a logical. If TRUE, additional diagnostics are printed.


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.


demo() # for attached packages

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

demo(lm.glm, package="stats")
## Not run: 
 ch <- "scoping"
 demo(ch, character = TRUE)
## End(Not run)

[Package utils version 2.5.0 Index]