Rf_error is used so often in R itself and packages that it is almost
certainly not the problem -- rather something else your program has done
has damaged R's internals (e.g. overrrun an array).
'Writing R Extensions' discusses how to debug R code, including foreign
code. For example, I would run under valgrind to look for incorrect
memory accesses.
This was an appropriate topic for R-devel -- please DO study the posting
guide.
On Mon, 28 Jul 2008, Andrew Redd wrote:
I'm having a problem with the error and warning functions. I've tried this
on multiple machine so I'm fairly sure it's not machine dependent and I've
tried it on the latest versions 2.6.0-2.7.1. Whenever my program gets to an
error or warning it crashes the entire program rather than throwing the
error like it should.
Here are the relevant bits.
...
char const * const ExeedsMinVarianceError = "PFDA ERR: Near zero
variance encountered. Estimation Unstable. Terminating Estimation.";
....
if(debug){printf("Da:\n");printmat(DaOld,1,*ka);fflush(stdout);}
daxpy_(ka, &mOne, Da, &one, DaOld, &one);
for(i=0;i<*ka;i++)convergenceCriteria+=fabs(DaOld[i]);
if(Da[*ka] < MinVariance){
printf("PING");fflush(stdout);
warning(ExeedsMinVarianceError);
break;
}
and the output from running in batch mode that I get is this:
Da:
0.1803 4.988e-017
PING
and here the program crashes. I've tried this in multiple places and
sometimes the error is thrown sometimes not. Does anyone have an idea of
what is going on. I could not find any discussion of this error yet.
Thank you,
Andrew Redd
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Brian D. Ripley, [EMAIL PROTECTED]
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 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
