R is a language which bears a passing resemblance to the S language developed at AT&T Bell Laboratories. It provides support for a variety of statistical and graphical analyses. R is a true computer language which contains a number of control-flow constructions for iteration and alternation. It allows users to add additional functionality by defining new functions.

On systems which have the GNU (3) library, R will maintain a command history, so that commands can be recalled, edited and re-executed.

Most options control what happens at the beginning and at the end of an R session, in particular which files are being read and written, and how much memory is reserved for the R process.

-h, --help

Print short help message and exit

--version

Print version info and exit

--encoding=ENC

Specify encoding to be used for stdin

RHOME

Print path to R home directory and exit

--save

Do save workspace at the end of the session

--no-save

Don't save it

--no-environ

Don't read the site and user environment files

--no-site-file

Don't read the site-wide Rprofile

--no-init-file

Don't read the .Rprofile or ~/.Rprofile files

--restore

Do restore previously saved objects at startup

--no-restore-data

Don't restore previously saved objects

--no-restore-history

Don't restore the R history file

--no-restore

Don't restore anything

--vanilla

Combine --no-save, --no-restore, --no-site-file, --no-init-file and --no-environ

--no-readline

Don't use readline for command-line editing

--min-vsize=N

Set vector heap min to N bytes; '4M' = 4 MegaB

--max-vsize=N

Set vector heap max to N bytes;

--min-nsize=N

Set min number of cons cells to N

--max-nsize=N

Set max number of cons cells to N

--max-ppsize=N

Set max size of protect stack to N

-q, --quiet

Don't print startup message

--silent

Same as --quiet

--slave

Make R run as quietly as possible

--verbose

Print more information about progress

-d, --debugger=NAME

Run R through debugger NAME

--debugger-args=ARGS

Pass ARGS as arguments to the debugger

-g, --gui=TYPE

Use TYPE as GUI; possible values are 'X11' (default), 'Tk' and (with package gnomeGUI) 'gnome'

--arch=NAME

Specify a sub-architecture

--args

Skip the rest of the command line

BATCH

Run R in batch mode

COMPILE

Compile files for use with R

SHLIB

Build shared library for dynamic loading

INSTALL

Install add-on packages

REMOVE

Remove add-on packages

build

Build add-on packages

check

Check add-on packages

LINK

Front-end for creating executable programs

Rprof

Post-process R profiling files

Rdconv

Convert Rd format to various other formats

Rd2dvi

Convert Rd format to DVI/PDF

Rd2txt

Convert Rd format to pretty text

Sd2Rd

Convert S documentation to Rd format

Stangle

Extract S/R code from Sweave documentation

Sweave

Process Sweave documentation

config

Obtain configuration information about R

Please use 'R CMD command --help' to obtain further information about the usage of 'command'.

R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under the terms of the GNU General Public License. For more information about these matters, see http://www.gnu.org/copyleft/gpl.html.

The full documentation for R is provided by a collection of Texinfo manuals and individual help for R objects which is also available on-line.

Start R and type ?topic at the R prompt to obtain on-line information for `topic'.

If the processed manuals have been installed they will be available as DVI and/or PDF files in the doc/manual subdirectory of the documentation directory tree (default `R RHOME`).

If the info program and the R manuals are installed on your system, typing info -f R-intro, info -f R-data, info -f R-exts, info -f R-FAQ, info -f R-lang and info -f R-ints should give you access to ``An Introduction to R'' (the basic manual), the ``R Data Import/Export'' Guide, the ``R Extension Writer's Guide'', the ``R FAQ'', the ``The R Language Definition'', and the ``R Internals''.