[R] Error handling

[Ernesto Jardim]

Hi

I don't want to know if it runs without errors, I want it to keep
working even if an error occurs.

Thanks

EJ

On Tue, 2002-07-09 at 17:02, Uwe Ligges wrote:
> 
> 
> Ernesto Jardim wrote:
> > 
> > Hi
> > 
> > I wrote a function implementing an algoritm for simulation of spatial
> > sampling plans (using geoR).
> > 
> > I'm using a range of parameters to perform several simulation and
> > sometimes this parameters create function errors wich cause the algoritm
> > to stop.
> > 
> > How can I avoid this ?
> > 
> > Below there's a small example that I made to study the problem but I was
> > not able to solve it. I've tried "restart" function but it caused an
> > endeless loop.
> > 
> > All help is wellcome.
> > 
> > > # function
> > >
> > > fun.test<-function(vec){
> > + for(i in 1:length(vec)){
> > + a <- log(vec[i])
> > + cat(vec[i],a,"\n")
> > + }
> > + }
> > >
> > > # case 1
> > >
> > > vec<-c(2,4,6)
> > >
> > > fun.test(vec)
> > 2 0.6931472
> > 4 1.386294
> > 6 1.791759
> > >
> > > # case 2
> > >
> > > vec<-c(2,4,"a",6)
> > >
> > > fun.test(vec)
> > Error in log(x) : Non-numeric argument to mathematical function
> > 
> > I want that in case 2 the function jumps "a" and continues giving a
> > similar result to case 1.
> 
> See ?try.
> 
> Uwe Ligges


-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._