[R] demo(tkttest) exits with error messages

[Prof Brian Ripley]

On 10 Feb 2001, Peter Dalgaard BSA wrote:

> Prof Brian D Ripley <ripley at stats.ox.ac.uk> writes:
>
> ...
> > For package tcltk to work (try `demo(tkdensity)' or `demo(tkttest)')
> > you need to have Tcl installed.  Download `tcl832.exe' (or use
> > `tcl831.exe' if you already have it) from <dev.scriptics.com> and
> > install it. (That will put the `bin' directory containing the Tcl and
> > Tk DLLs in your path).  You then need to set the environment variable
> > `TCL_LIBRARY', to something like `c:/Program Files/Tcl/lib/tcl8.3'.
> > (The startup code for the package will warn you if this is unset, and
> > Q3.2 explains how to set them.  NB: do not quote the path, even if as
> > here it contains spaces.)
> >
> >
> > There has been discussion of this on the list several times, and the
> > information is also in CHANGES.  But I think it is precisely what FAQs are
> > for!
>
> BTW, last I played with this, I found that the following worked nicely
> from inside R (can be useful if you have no access to the system
> startup files).
>
> Sys.putenv("TCL_LIBRARY"="c:/Program Files/Tcl/lib/tcl8.3")
>
> What *is* the recommended way of setting environment variables on
> Windows anyway?

Well, that's in the rw-FAQ too!   You are advised to make a shortcut to
Rgui.exe, and add the setting to the end of the command line, or
use .Renviron.  Neither of those need any access to any system files.


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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