[R] To Try or to TryCatch, I have tried to long

[William Dunlap]

Look at the archives of this mailing list for a discussion
entitled 'Stack trace?' on Nov 9-10 of this year.

Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com 

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Gene Leynes
> Sent: Tuesday, December 06, 2011 10:58 AM
> To: ROLL Josh F
> Cc: r-help at r-project.org
> Subject: Re: [R] To Try or to TryCatch, I have tried to long
> 
> I've had the same problem in other cases.
> 
> Does anyone know how to catch warnings as well as errors?
> 
> On Tue, Dec 6, 2011 at 12:34 PM, ROLL Josh F <JRoll at lcog.org> wrote:
> 
> > **
> > Agreed.  But what I am trying to control is when I get a warning.  I want
> > to do something different if a warning OR an error pop up?  Any ideas?
> >
> > Cheers
> >
> >  ------------------------------
> > *From:* gleynes at gmail.com [mailto:gleynes at gmail.com] *On Behalf Of *Gene
> > Leynes
> > *Sent:* Tuesday, December 06, 2011 10:27 AM
> > *To:* ROLL Josh F
> > *Cc:* r-help at r-project.org
> > *Subject:* Re: [R] To Try or to TryCatch, I have tried to long
> >
> > I think the problem is that it's only a warning and not an error.
> >
> > result_<-list()
> > for(i in 1:10){
> >      if(inherits(try(sqrt(9-i),silent=TRUE),"try-error")){
> >      #If sqrt fails
> >      cat('fail',i,'\n')
> >      result_[[i]]<-0 } else {
> >      #If sqrt succeeds
> >      cat('succeed',i,'\n')
> >      result_[[i]] <- 1 }
> > }
> > result_
> >
> > On Tue, Dec 6, 2011 at 11:11 AM, LCOG1 <jroll at lcog.org> wrote:
> >
> >> So after about 4 hours struggling with Try and TryCatch I am throwing in
> >> the
> >> towel.  I have a more complicated function that used logspline through
> >> iterative distributions and at some point the logspline doesnt function
> >> correctly for some subsets but is fine with others so I need to be able to
> >> identify when the error occurs and stop curtailing the distribution and I
> >> think this Try or TryCatch should do the trick but I think I am missing
> >> something here. A simple example
> >>
> >>
> >> result_<-list()
> >> for(i in 1:10){
> >>          if(inherits(try(sqrt(9-i),silent=TRUE),"try-error")){
> >>                #If sqrt fails
> >>                result_[[i]]<-0 } else {
> >>                #If sqrt succeeds
> >>                result_[[i]] <- 1 }
> >> }
> >>
> >>
> >> I would expect this to fail only when i > 9 but succeeds  each time.  DO i
> >> need to specify something different where "try-error" resides?  Thanks
> >> guys
> >>
> >> Cheers,
> >>  Josh
> >>
> >>
> >> --
> >> View this message in context:
> >> http://r.789695.n4.nabble.com/To-Try-or-to-TryCatch-I-have-tried-to-long-tp4165578p4165578.html
> >> Sent from the R help mailing list archive at Nabble.com.
> >>
> >> ______________________________________________
> >> R-help at 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.
> >>
> >
> >
> 
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> 
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