[R] svm in e1071 package segment fault in redhat 7.2

jason zhao jasonnew2001 at yahoo.com
Wed Mar 13 15:36:04 CET 2002


I installed gcc3. Both gcc(2.96) and 3.0.4 are in my
system right now. How can you configure R compiler
with gcc3 instead of gcc(2.96)?
Thanks

jason 

--- Prof Brian D Ripley <ripley at stats.ox.ac.uk> wrote:
> It works for me under RH7.2, using gcc 3.0.4.
> 
> Did you use a released version of gcc?  (Hint `2.96'
> is a figment of
> RedHat's imagination.)  Linux distros love putting
> out snapshot software
> (often ancient snapshots).
> 
> 
> On Mon, 11 Mar 2002, jason zhao wrote:
> 
> >
> > --- Uwe Ligges <ligges at statistik.uni-dortmund.de>
> > wrote:
> > > jason zhao wrote:
> > > >
> > > > Hi, Guys
> > > > I run one simple R script like this
> > > >
> > > > library(e1071)
> > > > data(iris)
> > > > attach(iris)
> > > > model <- svm (Species~., data=iris)
> > > >
> > > > The R version is 1.4.1. The OS is standard
> redhat
> > > 7.2.
> > > > Then I got a segmentation fault like this (run
> > > through
> > > > R CMD BATCH scriptName)
> > > > /usr/local/R/lib/R/bin/BATCH: line 54: 28513
> Done
> > > >               (
> > > > echo "invisible(options(echo = TRUE))"; cat
> ${in};
> > > > echo "proc.time()" )
> > > >      28514 Segmentation fault      |
> > > ${R_HOME}/bin/R
> > > > ${opts} >${out} 2>&1
> > > >
> > > > There is no problem if the R-binary is running
> > > redhat
> > > > 6.2.
> > > >
> > > > Does anyone see this problem?  Is there a
> > > workaround
> > > > for this?
> > >
> > > Haven't got RedHat 7.2 available, but your
> example
> > > works perfectly on
> > > SuSE 7.3, Solaris 5.7 and WinXP.
> > > So I guess you didn't compile R (or e1071) on
> your
> > > system.
> > > Maybe there is a small incompatibility with the
> > > precompiled version.
> > > I'd suggest to compile R yourself and install
> e1071
> > > from the sources.
> > >
> > > Uwe Ligges
> > I installed everyting  (the R basic, R-recommended
> > package and e1071 ) from source.   My test example
> > worked fine with redhat 6.2, but not redhat 7.2. I
> > think maybe it is  problem in gcc library or
> something
> > in e1071 package.
> > Any suggestion
> > Thanks
> >
> >
> >
> >
> >
> > __________________________________________________
> >
> >
> >
> >
>
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_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
> >
> 
> -- 
> 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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