sessionInfo: Collect Information About the Current R Session (original) (raw)
| sessionInfo | R Documentation |
|---|
Collect Information About the Current R Session
Description
Print version information about R, the OS and attached or loaded packages.
Usage
sessionInfo(package = NULL)
S3 method for class 'sessionInfo'
print(x, locale = TRUE, RNG = !identical(x$RNGkind, .RNGdefaults), ...)
S3 method for class 'sessionInfo'
toLatex(object, locale = TRUE, RNG = !identical(object$RNGkind, .RNGdefaults), ...) osVersion
Arguments
| package | a character vector naming installed packages, or NULL(the default) meaning all attached packages. |
|---|---|
| x | an object of class "sessionInfo". |
| object | an object of class "sessionInfo". |
| locale | show locale and code page information? |
| RNG | show information on RNGkind()? Defaults to true iff it differs from the R version's default, i.e., RNGversion(*). |
| ... | currently not used. |
Value
sessionInfo() returns an object of class "sessionInfo"which has print andtoLatex methods. This is a list with components
| R.version | a list, the result of calling R.Version(). |
|---|---|
| platform | a character string describing the platform R was built under. Where sub-architectures are in use this is of the formplatform/sub-arch (nn-bit). |
| running | a character string (or possibly NULL), the same as osVersion, see below. |
| RNGkind | a character vector, the result of calling RNGkind(). |
| matprod | a character string, the result of callinggetOption("matprod"). |
| BLAS | a character string, the result of callingextSoftVersion()["BLAS"]. |
| LAPACK | a character string, the result of calling La_library(). |
| locale | a character string, the result of calling Sys.getlocale(). |
| basePkgs | a character vector of base packages which are attached. |
|---|---|
| otherPkgs | (not always present): a character vector of other attached packages. |
| loadedOnly | (not always present): a named list of the results of calling packageDescription on packages whose namespaces are loaded but are not attached. |
osVersion
osVersion is a character string (or possibly NULL on bizarre platforms) describing the OS and version which it is running under (as distinct from built under). This attempts to name a Linux distribution and give the OS name on an Apple Mac.
It is the same as sessionInfo()$runningand created when loading the utils package.
Windows may report unexpected versions: see the help forwin.version.
How OSes identify themselves and their versions can be arcane: where possible osVersion (and hence sessionInfo()$running) uses a human-readable form.
Where R was compiled under macOS 10.x (as the CRAN Intel distributions have been) but running under ‘Big Sur’ or later, macOS reports itself as 10.16 (which R recognizes as ‘Big Sur/Monterey’) and not 11.x or 12.x.
Note
The information on ‘loaded’ packages and namespaces is the_current_ version installed at the location the package was loaded from: it can be wrong if another process has been changing packages during the session.
See Also
R.version
Examples
sI <- sessionInfo() sI
The same, showing the RNGkind, but not the locale :
print(sI, RNG = TRUE, locale = FALSE) toLatex(sI, locale = FALSE) # shortest; possibly desirable at end of report