[R] How to disable output messages (prints or cats) from functions in R?

[Henrik Bengtsson]

log <- capture.output({
  res <- theFunction(...);
})
print(res);

/H

On 12/01/2008, Miguel Ratón Almansa <cibermike at telefonica.net> wrote:
> Hi,
>
> I've tried it but I need the object returned by the function and if I
> use capture.output() I lose it because It returns a string, not the
> object. I want the returned object without the displaying information
> showed by the function. Something like suppressWarnings( ) but
> suppressing the standard output.
>
> Miguel
>
>
> Henrik Bengtsson escribió:
> > See capture.output(). /H
> >
> > On 11/01/2008, Miguel Ratón Almansa <cibermike at telefonica.net> wrote:
> >
> >> Hi everybody,
> >>
> >> I have to use a function that shows an output message like "# nonzero
> >> coefficients ..." followed with a lot of numbers depending on the input.
> >> This is very annoying because I have to run that function several times
> >> and I don't want to show this information.
> >>
> >> What I want is to disable that display but I don't know how to do it.
> >> I've tried it with suppressWarnings ( function (...) ) and
> >> suppressMessages ( function (...) ) but It doesn't work, the function()
> >> continues printing that information. I tried invisible () too.
> >>
> >> Furthermore, this function doesn't have a "verbose" parameter. Thus, I
> >> can't disable it using a verbose parameter.
> >>
> >> I'm sure that there must be some procedure in R to do it but after
> >> searching through the mailing lists I haven't found anything about it.
> >>
> >> Thank you for your help,
> >> Miguel Ratón Almansa
> >>
> >> ______________________________________________
> >> 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.
> >>
> >>
> >
> >
>
>