Hi, On my laptop, R is installed on windows XP SP2 at D:\Program Files\R\R-2.8.0, and all add-on packages are installed at D:\Program Files\R\R-2.8.0.libs. In addition, I have created two environment enviroment to ease upgrading and installation of packages. Packages installed is a mix of those from CRAN, Bioconductor and local zips.
D:\My Document\My Desktop>echo %R_HOME% D:/Program Files/R/R-2.8.0 D:\My Document\My Desktop>echo %R_LIBS% D:/Program Files/R/R-2.8.0.libs My plans for upgrade. Please give your precious comments to make it as easy as possible, and error free. 1) Download R-2.8.1 and install at D:\Program Files\R\R-2.8.1. 2) Create a new folder D:/Program Files/R/R-2.8.1.libs, and copy all the packages from D:/Program Files/R/R-2.8.0.libs to the new one. 3) Update the two environment variables %R_HOME% and %R_LIBS% to point to the new R-2.8.1 and library 4) Execute R 5) Update CRAN packages via update.packages() 6) Update Bioconductor packages via source("http://bioconductor.org/biocLite.R") update.packages(repos=biocinstallRepos(), ask=FALSE) 7) Update local zip packages via Go to menu -> Packages -> Install packages from local zip -> select the zip file. 8) Done!!! > sessionInfo() R version 2.8.0 (2008-10-20) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1] grid tools stats graphics grDevices utils datasets methods base ______________________________________________ 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.