| demo {utils} | R Documentation |
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"),
echo = TRUE, ask = getOption("demo.ask"))
topic |
the topic which should be demonstrated, given as a
name or literal character string, or a character string,
depending on whether |
package |
a character vector giving the packages to look into for
demos, or |
lib.loc |
a character vector of directory names of R libraries,
or |
character.only |
logical; if |
verbose |
a logical. If |
echo |
a logical. If |
ask |
a logical (or |
If no topics are given, demo lists the available demos. The
corresponding information is returned in an object of class
"packageIQR".
source and devAskNewPage which
are called by demo.
demo() # for attached packages
## All available demos:
demo(package = .packages(all.available = TRUE))
## Display a demo, pausing between pages
demo(lm.glm, package="stats", ask=TRUE)
## Display it without pausing
demo(lm.glm, package="stats", ask=FALSE)
## Not run:
ch <- "scoping"
demo(ch, character = TRUE)
## End(Not run)
## Find the location of a demo
system.file("demo", "lm.glm.R", package="stats")