

   VVeerrssiioonn IInnffoorrmmaattiioonn

        R.Version()
        R.version
        R.version.string

   DDeessccrriippttiioonn::

        `R.Version()' provides detailed information about the
        version of R running.
        `R.version' is a variable (a `list') holding this
        information (and `version' is an `.Alias' to it for S
        compatibility), whereas `R.version.string' is simple
        `character' string, useful for plotting, etc.

   VVaalluuee::

        `R.Version' returns a list with components

   platform: the platform for which R was built.  Under Unix, a
             triplet of the form CPU-VENDOR-OS, as determined
             by the configure script.  E.g, `"i586-unknown-
             linux"'.

       arch: the architecture (CPU) R was built on/for.

         os: the underlying operating system

     system: CPU and OS.

     status: the status of the version (e.g., `"Alpha"')

   status.rev: the status revision level

      major: the major version number

      minor: the minor version number

       year: the year the version was released

      month: the year the version was released

        day: the year the version was released

   language: always `"R"'.

   SSeeee AAllssoo::

        `machine'.

   EExxaammpplleess::

        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

