[Rd] Version names
simon.urbanek at math.uni-augsburg.de
Mon Nov 29 00:51:15 CET 2004
On Nov 28, 2004, at 11:58 PM, Gabor Grothendieck wrote:
> Quite so but unfortunately if I want to produce a script
> that has no dependencies then I need to use what is provided
> in Windows and Windows batch commands seem to be the best
> way to do that.
Batch scripts are also quite dependent on the system and settings used.
Moreover what are you trying to do? The rwXXX scheme is just a
suggestion, every user is free to change the name during the
installation, so there is no way to know by folder name which version
you're dealing with... The only half-way sensible solution I can think
of is looking for Rterm.exe and running each one to get the
corresponding R version - I suppose you can do that with a batch script
If all you want to do is to determine the current (most recently
installed) R version, then all it takes is two lines of C code [just
read one registry entry] - and it's at least as portable across Windows
systems as a batch script, but far more flexible. (There may even be a
way to get that info w/o coding at all - I'm not sure whether regedit
has any batch mode or something ...).
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