I am a new R user. I trying to install a package all Matching but failed.
Here is the error msg.
> install.packages("Matching", dependencies=TRUE)
Installing package(s) into ‘C:/Users/jzhu/Documents/R/win-library/2.13’
(as ‘lib’ is unspecified)
--- Please select a CRAN mirror for use in this session ---
Warning: unable to access index for repository
http://cran.wustl.edu/bin/windows/contrib/2.13
Warning: unable to access index for repository
http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.13
Warning messages:
1: In open.connection(con, "r") :
unable to connect to 'cran.r-project.org' on port 80.
2: In getDependencies(pkgs, dependencies, available, lib) :
package ‘Matching’ is not available (for R version 2.13.1)
Thanks.
JP
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