(R-admin.info)Running R

---

Next: Add-on packages Prev: Installing R under macOS Up: Top

---

Enter node , (file) or (file)node

5 Running R
***********

How to start R and what command-line options are available is discussed
in Note: Invoking R.

   You should ensure that the shell has set adequate resource limits: R
expects a stack size of at least 8MB and to be able to open at least 256
file descriptors.  (Any modern OS should have default limits at least as
large as these, but apparently NetBSD may not.  Use the shell command
'ulimit' ('sh'/'bash') or 'limit' ('csh'/'tcsh') to check.)

   R makes use of a number of environment variables, the default values
of many of which are set in file 'R_HOME/etc/Renviron' (there are none
set by default on Windows and hence no such file).  These are set at
'configure' time, and you would not normally want to change them - a
possible exception is 'R_PAPERSIZE' (Note: Setting paper size).  The
paper size will be deduced from the 'LC_PAPER' locale category if it
exists and 'R_PAPERSIZE' is unset, and this will normally produce the
right choice from 'a4' and 'letter' on modern Unix-alikes (but can
always be overridden by setting 'R_PAPERSIZE').

   Various environment variables can be set to determine where R creates
its per-session temporary directory.  The environment variables
'TMPDIR', 'TMP' and 'TEMP' are searched in turn and the first one which
is set and points to a writable area is used.  If none do, the final
default is '/tmp' on Unix-alikes and the value of 'R_USER' on Windows.
The path should be an absolute path not containing spaces (and it is
best to avoid non-alphanumeric characters such as '+').

   Some Unix-alike systems are set up to remove files and directories
periodically from '/tmp', for example by a 'cron' job running
'tmpwatch'.  Set 'TMPDIR' to another directory before starting
long-running jobs on such a system.

   Note that 'TMPDIR' will be used to execute 'configure' scripts when
installing packages, so if '/tmp' has been mounted as 'noexec', 'TMPDIR'
needs to be set to a directory from which execution is allowed.