

   DDeetteerrmmiinnee tthhee MMaacchhiinnee iiss RRuunnnniinngg OOnn

        machine()

   DDeessccrriippttiioonn::

        This function returns a string which specifies what
        kind of environment R is being run in.

   SSeeee AAllssoo::

        `Machine' for the computer's characteristics in arith-
        metics.

   EExxaammpplleess::

        machine()# to see yours
        if (machine() == "Macintosh")
          cat("You are using a Macintosh computer\n")

