[R] randomForest() segfaults under Solaris(SPARC) 2.7

[Liaw, Andy]

As the package maintainer, I'd like to find out what's wrong.
Unfortunately I do not have access to a suitable Solaris box
to try it.  Can anyone with similar platform help?

I already found one (unrelated) bug in the predict.randomForest
function.  The randomForest.default function accepts matrix
or data frame, but predict.randomForest assumes data frame.
If a matrix is passed to the predict method, error will occur.
As a temporary fix, coerce matrix to data frame before handing
it to the predict method.

Regards,
Andy

> -----Original Message-----
> From: Steve Shiboski [mailto:steve at biostat.ucsf.edu]
> Sent: Friday, April 05, 2002 3:24 PM
> To: r-help at stat.math.ethz.ch
> Subject: [R] randomForest() segfaults under Solaris(SPARC) 2.7
> 
> 
> Invocation of randomForest() using the iris example in the help
> file crashes R with a segmentation fault. This happens on
> all of our ultraSPARC machines running Solaris 2.7.
> 
> We're using R-1.4.1, compiled using Sun cc and f77 and
> the flags:
> 
> CC=cc
> CFLAGS="-xO5 -xlibmil -dalign"
> FC=f77
> FFLAGS="-xO5 -xlibmil -dalign"
> 
> "make check" runs withour errors, and R has been working
> well for all other applications/installations.
> 
> Incidentally, randomForest() runs fine on one of our 
> ultraSPARC machines 
> running Solaris 2.6 and R-1.4.1 compiled using the same 
> compilers and flags.
> It also reportedly works if gcc/g77 are used.
> 
> Any suggestions appreciated.
> 
> -- 
> Stephen Shiboski  -------------------  steve at biostat.ucsf.edu
> Division of Biostatistics                 voice: 415-476-0533
> University of California, San Francisco     fax: 415-476-6014
> 500 Parnassus Avenue, MU 420-W;  San Francisco, CA 94143-0560
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