| R.Version {base} | R Documentation |
Version Information
Description
R.Version() provides detailed information about the version of
R running.
R.version is a variable (a list) holding this
information (and version is a copy of it for S compatibility).
Usage
R.Version()
R.version
R.version.string
version
R_compiled_by()
Details
This gives details of the OS under which R was built, not the one
under which it is currently running (for which see
Sys.info).
Note that OS names might not be what you expect: for example macOS Mavericks 10.9.4 identifies itself as ‘darwin13.3.0’, Linux usually as ‘linux-gnu’, Solaris 10 as ‘solaris2.10’ and Windows as ‘mingw32’.
R.version$crt is supported on Windows since R 4.2.0 and returns
"ucrt" to denote the Universal C Runtime. It would return
"msvcrt" for the older Microsoft Visual C++ Runtime (but R does
not use that runtime since 4.2.0).
Value
R.Version returns a list with character-string components
platform |
the platform for which R was built. A triplet of the
form CPU-VENDOR-OS, as determined by the configure script. E.g,
|
arch |
the architecture (CPU) R was built on/for. |
os |
the underlying operating system. |
crt |
the C runtime on Windows. |
system |
CPU and OS, separated by a comma. |
status |
the status of the version (e.g., |
major |
the major version number. |
minor |
the minor version number, including the patch level. |
year |
the year the version was released. |
month |
the month the version was released. |
day |
the day the version was released. |
svn rev |
the Subversion revision number, which should be either
|
language |
always |
version.string |
a
|
R.version and version are lists of class
"simple.list" which has a print method.
R_compiled_by returns a two-element character vector giving
details of the C and Fortran compilers used to build R. (Empty
strings if no information is available.)
Note
Do not use R.version$os to test the platform the
code is running on: use .Platform$OS.type instead. Slightly
different versions of the OS may report different values of
R.version$os, as may different versions of R.
Alternatively, osVersion typically contains more
details about the platform R is running on.
R.version.string is a copy of R.version$version.string
for simplicity and backwards compatibility.
See Also
sessionInfo which provides additional information;
getRversion typically used inside R code,
osVersion,
.Platform, Sys.info.
Examples
require(graphics)
R.version$os # to check how lucky you are ...
plot(0) # any plot
mtext(R.version.string, side = 1, line = 4, adj = 1) # a useful bottom-right note
## a good way to detect macOS:
if(grepl("^darwin", R.version$os)) message("running on macOS")
## Short R version string, ("space free", useful in file/directory names;
## also fine for unreleased versions of R):
shortRversion <- function() {
rvs <- R.version.string
if(grepl("devel", (st <- R.version$status)))
rvs <- sub(paste0(" ",st," "), "-devel_", rvs, fixed=TRUE)
gsub("[()]", "", gsub(" ", "_", sub(" version ", "-", rvs)))
}
shortRversion()