 Hi,
 I need to install "lmtest package".I have tried to several times to install
packages however I could not. Can anyone help?
 Best regards

install.packages ()
--- Please select a CRAN mirror for use in this session ---
Warning: unable to access index for repository
http://cran.cict.fr/bin/windows/contrib/2.12
Warning: unable to access index for repository
http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.12
Error in length(pkgs) : 'pkgs' is missing
In addition: Warning message:
In open.connection(con, "r") :
  cannot open: HTTP status was '401 Unauthorized'

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