Collect Information About the Current R Session

sessionInfo {utils}

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 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 and toLatex 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 form platform/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 calling `getOption("matprod")`.
`BLAS`	a character string, the result of calling `extSoftVersion()["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()$running and created when loading the utils package.

Windows may report unexpected versions: see the help for win.version.

How OSes identify themselves and their versions can be arcane: where possible osVersion (and hence sessionInfo()$running) uses a human-readable form.

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.

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

[Package utils version 3.6.0 Index]