On Wed, May 4, 2011 at 3:25 PM, Yihui Xie <x...@yihui.name> wrote: > 1. "Few Windows users use these commands" does not imply they are not > useful, and I have no idea how many Windows users really use them. How > do you run "R CMD build" when you build R packages under Windows? You > don't write "C:/Program Files/R/R-2.13.0/bin/i386/R.exe CMD build", do > you? > > I think the reason we have to mess with the PATH variable for each > single software package is that Windows is Not Unix, so you may hate > Windows instead of a package that modifies your PATH variable. > > For the choice of i386 and x64, you can let the user decide which bin > path to use. I believe the number of users who frequently switch back > and forth is fairly small. > > 2. Under most circumstances I just keep the latest version of R. To > maintain R code with old R versions will be more and more difficult > with new features and changes coming in. Disk space is cheap, but time > is not. >
I keep old versions for basically the same reasons you don't -- that is, I have analyses that ran under the old versions, and I can be sure they will give the same answer a year later if I keep the old versions. This isn't so much because of changes in R as because of changes in packages. -thomas -- Thomas Lumley Professor of Biostatistics University of Auckland ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel