From ripley@stats.ox.ac.uk  Tue Dec 18 11:47:05 2001
From: ripley@stats.ox.ac.uk (Prof Brian Ripley)
Date: Tue, 18 Dec 2001 11:47:05 +0000 (GMT)
Subject: [Rd] isoMDS: core dump (PR#1221)
In-Reply-To: <Pine.LNX.4.33.0112181157180.423-100000@kleigh.nl>
Message-ID: <Pine.LNX.4.31.0112181143230.21228-100000@gannet.stats>

On Tue, 18 Dec 2001, Peter Kleiweg wrote:

> Prof Brian Ripley scribeva...
>
> > On Tue, 18 Dec 2001 kleiweg@let.rug.nl wrote:
> >
> > >
> > > I'm not sure this belong here...
> > >
> > > Package: MASS
> > > Version: 6.2-8
> >
> > Not current.
>
> This version was in the set of recommended packages for R 1.3.1.
> Is R 1.4.0 released yet?

No, but even recommended packages have updates on CRAN.

> > > I get a core dump when I call isoMDS with an incorrect argument
> > > for y. With d as an object of class "dist":
> > >
> > >   > isoMDS(d,2)
> > >
> > >   Program received signal SIGSEGV, Segmentation fault.
> > >   0x40229e43 in VR_mds_init_data () at MASS.c:157
> >
> > So don't!
>
> So don't what?

Don't call isoMDS with an argument that is not as documented.

-- 
Brian D. Ripley,                  ripley@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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[Rd] isoMDS: core dump (PR#1221)
Prof Brian Ripley