I have tested in WinXP:

example:
> dir("C:/")
 [1] "Arquivos de programas"         "AUTOEXEC.BAT"
 [3] "boot.ini"                      "Bootfont.bin"
 [5] "CONFIG.SYS"                    "Debug"
 [7] "debug.log"                     "Desktop.ini"
 [9] "Dic"                           "Documents and Settings"

"Dic" is a folder
 any(dir("C:/")=="Dic")
[1] TRUE


That are right?


-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22"
O<http://maps.google.com/maps?f=q&hl=en&q=Curitiba,+Brazil&layer=&ie=UTF8&z=18&ll=-25.448315,-49.276916&spn=0.002054,0.005407&t=k&om=1>

On 20/06/07, Prof Brian Ripley <ripley@stats.ox.ac.uk> wrote:
>
> On Wed, 20 Jun 2007, Henrique Dallazuanna wrote:
>
> > for check the existence,
> >
> > any(dir('your path')=="your folder")
>
> That does not work, but fortunately R has file_test() for this purpose.
>
> --
> Brian D. Ripley,                  ripley@stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
>

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