RShowDoc | R Documentation |
Utility function to find and display R documentation.
RShowDoc(what, type = c("pdf", "html", "txt"), package)
what |
a character string: see ‘Details’. |
type |
an optional character string giving the preferred format. Can be abbreviated. |
package |
an optional character string specifying the name of a package within which to look for documentation. |
what
can specify one of several different sources of documentation,
including the R manuals (R-admin
, R-data
, R-exts
,
R-intro
, R-ints
, R-lang
), NEWS
,
COPYING
(the GPL licence), any of the licenses in
‘share/licenses’, FAQ
(also available as
R-FAQ
), and the files in ‘R_HOME/doc’.
Only on Windows, the R for Windows FAQ is specified by rw-FAQ
.
If package
is supplied, documentation is looked for in the
‘doc’ and top-level directories of an installed package of that name.
If what
is missing a brief usage message is printed.
The documentation types are tried in turn starting with the first
specified in type
(or "pdf"
if none is specified).
A invisible character string given the path to the file found.
For displaying regular help files, help
(or
?
) and help.start
.
For type = "txt"
, file.show
is used.
vignette
s are nicely viewed via RShowDoc(*, package= . )
.
RShowDoc("R-lang") RShowDoc("FAQ", type = "html") RShowDoc("frame", package = "grid") RShowDoc("changes.txt", package = "grid") RShowDoc("NEWS", package = "MASS")
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