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reposityry
2009 Apr 26
1
Problem installing packages
since 2.9.0 version I have a problem with installing packages:
install.packages("sp")
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk interface ... done
Warning: unable to access index for repository
http://piotrkosoft.net/pub/mirrors/CRAN/src/contrib
Warning messages:
1: In open.connection(con, "r") : unable to resolve ''
2: In