R: Version Information

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

### 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, `"i586-unknown-linux"` or `"i386-pc-mingw32"`.
`arch` | the architecture (CPU) R was built on/for.
`os` | the underlying operating system
`system` | CPU and OS, separated by a comma.
`status` | the status of the version (e.g., `"Alpha"`)
`major` | the major version number
`minor` | the minor version number, including the patchlevel
`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 `"unknown"` or a single number. (A range of numbers or a number with M or S appended indicates inconsistencies in the sources used to build this version of R.)
`language` | always `"R"`.
`version.string` | a `character` string concatenating some of the info above, useful for plotting, etc.

`R.version` and `version` are lists of class `"simple.list"` which has a `print` method.

### 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.

`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, `.Platform`.

### 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

[Package base version 2.6.2 Index]