ESS doesn't know the names.  And you don't have to keep updating ESS (at
least, not for for this reason).

Part  of the ESS start up is to look for all R** executables in the
standard places.  I used fake notation in this
sentence, with the implication that the first '*' means all the valid
prefixes, and the second '*' anything that starts with
one of those.  Details depend on operating system.

Advanced ESS users who want to follow this may start with ess-site.el and
look for the line
;;; Create functions for calling different (older or newer than default)

then follow it from there.  Repeat, this is not for the casual ESS user.

Rich

On Sat, Mar 23, 2013 at 12:16 AM, Kasper Daniel Hansen <
kasperdanielhansen@gmail.com> wrote:

> On Fri, Mar 22, 2013 at 11:28 PM, Richard M. Heiberger <rmh@temple.edu>
> wrote:
> > I see two possibilities, and I haven't checked either.
> >
> > 1.  Did you restart emacs after installing R-3.0?  The aliases are
> defined
> > at start time.
> >
> > 2. R-3.0 is not a valid R-core name.  I have R-3.0.0alpha on my machine.
>  At
> > release, I will have R-3.0.0
>
> Thanks.
>
> It is not 1) (and I have of course also checked that the symlink works
> etc.)  I think it is something like 2) and I guess I am wondering how
> ESS knows what R-core considers valid names.  It would be very weird
> (I think) if I had to name something 3.0-alpha.  And how would ESS
> keep current with R, unless one updates ESS regularly (ok, I do, but
> still)
>
> Kasper
>
>
> >
> > Rich
> >
> > On Fri, Mar 22, 2013 at 11:22 PM, Kasper Daniel Hansen
> > <kasperdanielhansen@gmail.com> wrote:
> >>
> >> Emacs 24.2.1, Ess 13.03 (same issue with 12.09-2)
> >>
> >> Usually, Mx R-$version allows me to start any R-$version, even for
> >> "weird" $versions like R-2.15.x.
> >>
> >> I now have a symlink to R-3.0 in my path, seemingly exactly as I have
> >> symlinks to many other versions of R.  But M-x R-3.0 does not work.
> >> Is there some kind of regular expression at work here?
> >>
> >> Best,
> >> Kasper
> >>
> >> ______________________________________________
> >> ESS-help@r-project.org mailing list
> >> https://stat.ethz.ch/mailman/listinfo/ess-help
> >
> >
>

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