[R] Installing R on RedHat7.0

[Tom Wainwright]

Thanks!  Building from source worked, and the demos all run.  Several
others report that R runs smoothly on RedHat7.

However, not all the tests in $R_HOME/tests succeed.  When I do "make
test-Examples" in that directory,  it fails executing "base-Ex.R" in the
"eigen" section, with the error:

	Error: abs(sm %*% V - V %*% diag(lam)) < 60 * Meps is not TRUE

This appears to be a numerical precision problem.  Checking, Meps (i.e.
.Machine.double.eps) is 1.084202e-19.  Is this a reasonable value for a
Pentium III?

If I rerun test-Examples, all the remaining tests complete with no problem.

Similarly, make test-Specific fails during arith-true.R, with many tests
returning FALSE.

Have others who run R on RedHat7 run these tests? It seems that either
there's a serious compiler problem, or the .Machine variables are getting
set wrong, or I have a hardware problem.

Peter Dalgaard BSA wrote:
> 
> Tom Wainwright <thomas.wainwright at noaa.gov> writes:
> 
> > After that long-winded introduction, my question is:  Has anyone gotten a
> > working installation of R on RedHat 7, or on any other system with the
> > version 8.3 tcl/tk libraries, or been able to get the earlier libraries to
> > work under RH7??
> 
> I think Brian Ripley has been using the 8.3 libraries on windows.
> delTcl is on the R side of things, defined in tcltk.c, so you're
> getting some pretty strange errors there.
> 
> I suspect your best bet is to install R from source, which ought to be
> pretty easy - or at any rate, we'd like to know about any trouble you
> run into.
> 
> --
>    O__  ---- Peter Dalgaard             Blegdamsvej 3
>   c/ /'_ --- Dept. of Biostatistics     2200 Cph. N
>  (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
> ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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-- 
Tom Wainwright
NOAA/NMFS/NWFSC
2030 S Marine Science Dr
Newport, OR 97365 USA
thomas.wainwright at noaa.gov
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