Dear list This is much like a linux problem, but I can't find any reference for it. My OS is ubuntu 9.04 and a version of 2.9.2 of R has been already installed in. Now, I need to install the version of 2.7.1. I google a lot of websites and it seems like without a painless way provided me to do it. If any one offers me some suggestions/reference, I will appreciate. Jia-Chiun Pan
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