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On 11/18/2010 11:11 AM, Alaios 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.
What about the following? Is that what
x <- 1:4
y <- list(good=2:5, bad=3:5)
for (yy in y) {
tryCatch( x <- cbind(x, yy),
warning=browser
)
}
Cheers,
Rainer
>
> 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.
>>
>>
>
>
>
>
> [[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.
- --
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)
Centre of Excellence for Invasion Biology
Natural Sciences Building
Office Suite 2039
Stellenbosch University
Main Campus, Merriman Avenue
Stellenbosch
South Africa
Tel: +33 - (0)9 53 10 27 44
Cell: +27 - (0)8 39 47 90 42
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email: rai...@krugs.de
Skype: RMkrug
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