[R-SIG-Mac] restoring R 2.11.1 while keeping R 2.12
ken.knoblauch at inserm.fr
Tue Nov 16 17:11:19 CET 2010
What's the cleanest way to restore R 2.11.1 without clobbering R 2.12?
I know that pkgutil can be used to forget old receipts in order to upgrade
to a higher version of R while retaining the lower one and then Rswitch
can be used to choose the one to run. But, this didn't seem to work in
the reverse direction, i.e., I have R 2.12 patched installed and I tried
to install R 2.11.1 after running pkgutil. Rswitch did not record that
R 2.11.1 had been installed and the GUI bombed out on startup (I probably
have to install the R 2.11.1 GUI separately).
Do I have to uninstall R 2.12 before reinstalling R 2.11.1 and then do
use pkgutils, or is there a simpler way?
The reason for wanting to do this is that I need to process some documents
using Sweave that use the cacheSweave package, which currently is not
working correctly with R 2.12, even though an update has been promised
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