Hi Yunfei, It really depends to some extent on the version of R (and your OS) you were using. Here is a link to a blog post that discusses some potential strategies: http://www.r-statistics.com/2010/04/changing-your-r-upgrading-strategy-and-the-r-code-to-do-it-on-windows/
There are also a number of messages if you search the R-help archive. However, old version of libraries may not be portable to the most recent R, so you may need to update R and update all your libraries too. Cheers, Josh On Thu, Mar 31, 2011 at 10:16 AM, Li, Yunfei <yunfei...@wsu.edu> wrote: > Hi, > > My R version is old, and I would like to update it. How can I update R and > keep all the libraries? Thanks > > Best, > > Yunfei Li > -------------------------------------------------------------------------------------- > Research Assistant > Department of Statistics & > School of Molecular Biosciences > Biotechnology Life Sciences Building 427 > Washington State University > Pullman, WA 99164-7520 > Phone: 509-339-5096 > http://www.wsu.edu/~ye_lab/people.html > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles http://www.joshuawiley.com/ ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.