Re: [Rd] Capturing warnings with capture.output

From: hadley wickham <h.wickham_at_gmail.com>
Date: Tue 05 Sep 2006 - 15:13:58 GMT

> Something like this which displays the warnings and also writes
> them to out so that they are captured:

Is it possible to not display the warnings (just write them out) ?

Hadley

>
> out <- capture.output(
> withCallingHandlers({
> print(1)
> warning("A warning.")
> print(2)
> warning("Another warning.")
> print(3)
> }, warning = function(x) cat(x$message, "\n"))
> )
>
> print(out)
>
>
> On 8/29/06, hadley wickham <h.wickham@gmail.com> wrote:
> > Is there any way to include warnings in the output from capture.output? eg:
> >
> > a <- capture.output(warning("test"))
> > all.equal(a, "Warning message: \n test ")
> >
> > Conceptually, this seems like redirecting stderr to stdout, or somehow
> > changing warning to simple print it's output. I've had a look at
> > tryCatch and using a warning handler, but this terminates execution at
> > the warning.
> >
> > Thanks,
> >
> > Hadley
> >
> > ______________________________________________
> > R-devel@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-devel
> >
>



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https://stat.ethz.ch/mailman/listinfo/r-devel Received on Wed Sep 06 01:17:15 2006

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