Sorry Alex, I don't quite follow what you want. What do you mean by "it would be nicer if the execution is paused so to try to print more values" ?
Michael On 18 November 2010 21:11, Alaios <ala...@yahoo.com> wrote: > > Dear Michael, > I would like to thank you for your reply. This line made things easier. One > more question what If I want to halt or pause the program when a warning > happens? Right now I get only a message printed but it would be nicer if the > execution is paused so to try to print more values. > > Best REgards > > Alex > > --- On Thu, 11/18/10, Michael Bedward <michael.bedw...@gmail.com> wrote: > > From: Michael Bedward <michael.bedw...@gmail.com> > Subject: Re: [R] How to catch warnings > To: "Alaios" <ala...@yahoo.com> > Cc: "Rhelp" <r-help@r-project.org> > Date: Thursday, November 18, 2010, 1:26 AM > > Hi Alex, > > Something like this ? > > x <- 1:4 > y <- list(good=2:5, bad=3:5) > for (yy in y) { > tryCatch( x <- cbind(x, yy), > warning=function(w) cat("problem values: ", yy, "\n") > ) > } > > Michael > > > On 18 November 2010 03:19, Alaios <ala...@yahoo.com> wrote: > > Hello when my code executes I receive the message that were some warnings. > > I want to catch warning messages at run time so to print some local > > variables and try to understand why this warning happens. > > > > I searched on internet and I tried withCallingHandlers( > > which seems to work but as I used Rkward the result is awful. I get a > > prompt to copy paste a value only while at the same time my background > > window with my code is not anymore accessible. > > > > Actually I get the warning that > > In f[cbind(shweights[, 1], shweights[, 2])] * shweights[, ... : > > longer object length is not a multiple of shorter object length > > > > and what I want is when the warning appear to be able to print the value > > shweights[,1] shweights[,2] to see what is going on. > > > > Any easier way to do that? > > Best REgards > > Alex > > > > > > > > > > > > [[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. > > > > > ______________________________________________ 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.