

   GGeett oorr SSeett WWoorrkkiinngg DDiirreeccttoorryy

        getwd()
        setwd(dir)

   AArrgguummeennttss::

        dir: A character string.

   DDeessccrriippttiioonn::

        `getwd' returns an absolute filename respresenting the
        current working directory of the R process;
        `setwd(dir)' is used to set the working directory to
        `dir'.

   EExxaammpplleess::

        WD <- getwd()
        if (!is.null(WD)) setwd(WD)

