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....com/questions/4739837/how-do-i-install-an-r-package-from-the-source-tarball-on-windows http://cran.r-project.org/doc/manuals/R-admin.html#Windows-packages (6.3.1 Windows) http://cran.r-project.org/doc/manuals/R-admin.html#The-Windows-toolset (Appendix D The Windows toolset) I have installed RTools216 on Win 7. But, it does not say how to use it to build a R package on Win 7. http://cran.r-project.org/bin/windows/Rtools/Rtools216.exe Any help will be appreciated. Thanks [[alternative HTML version deleted]]

1. If your PATH is very long then on the Select Additional Tasks screen in the Rtools installer the two check box titles (Edit the system PATH and Save version number) will be obscured (i.e. you won't be able to see them at all) making the screen very confusing. One just sees two boxes on the left and a long path on the right and has no idea what it all means. Also even with a short path the