[R] Problems with R-0.65.0 -- IEEE-Arithmetic again ?!

Martin Maechler maechler at stat.math.ethz.ch
Tue Sep 14 09:11:39 CEST 1999

>>>>> On 13 Sep 1999 23:51:31 +0200, Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk> said:

    PD> Ralf Herbrich <ralfh at cs.tu-berlin.de> writes:
    >> Hello,
    >> I installed the new release 0.65.0 of R on our local Solaris
    >> system. As I already (and sucessfully) installed the 0.64.0 and
    >> 0.64.1 version of R, I hadn't had any trouble during the
    >> installation. But as I've started R in order to see the demo I've
    >> got horizontal and vertical lines goint to the left and top of the
    >> X11 window at each tick (demo ("graphics")). This seems not to be a
    >> grid but is now standard in any 2D plot (I also tried several of my
    >> own R programs). Furthermore, the exported postscripts (dev.print
    >> (file="blabla.ps")) can't be displayed by ghostscript.
    >> What did I wrong during the installation?

    PD> Possibly nothing, but I don't see that effect on solaris
    PD> 2.5.1. You're not using an older config.cache by any chance?

    PD> What version of Solaris are we talking about? And is the effect
    PD> visible on all X servers? And which version of which C compiler?

As yesterday (on R-devel, with Kurt Suebert who had problems on a Dec Alpha):

This must be a bug in the handling of IEEE-Arithmetic,
i.e. +/- Inf and NaN
[to people not running "make check", it always shows first in the graphics!]

In your toplevel directory,

   cd tests
   make test-Specific

will most probably show how the IEEE-Arithmetic is broken.
(and please let us know how..).

Martin Maechler <maechler at stat.math.ethz.ch>	http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum  LEO D10	Leonhardstr. 27
ETH (Federal Inst. Technology)	8092 Zurich	SWITZERLAND
phone: x-41-1-632-3408		fax: ...-1228			<><
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