[R] suppress startup messages from default packages

[Duncan Murdoch]

On 15/07/2013 8:49 AM, Andreas Leha wrote:
> Hi Helios,
>
> "Helios de Rosario" <helios.derosario at ibv.upv.es> writes:
>
> >> Hi all,
> >>
> >> several packages print messages during loading.  How do I avoid to
> > see
> >> them when the packages are in the defaultPackages?
> >>
> >> Here is an example.
> >>
> >> With this in ~/.Rprofile
> >> ,----[ ~/.Rprofile ]
> >> | old <- getOption("defaultPackages")
> >> | options(defaultPackages = c(old, "filehash"))
> >> | rm(old)
> >> `----
> >>
> >> I get as last line when starting R:
> >> ,----
> >> | filehash: Simple key-value database (2.2-1 2012-03-12)
> >> `----
> >>
> >> Another package with (even more) prints during startup is
> > tikzDevice.
> >>
> >>How can I avoid to get these messages?
> >
> >
> > There are several options in ?library to control the messages that are
> > displayed when loading packages. However, this does not seem be able to
> > supress all the messages. Some messages are defined by the package
> > authors, because they feel necessary that the user reads them.
> >
>
>
> Thanks for your answer.  When I actually call library() or require()
> myself I can avoid all messages.  There are hacks to do that even for
> the very persistent messages [fn:1].
>
> My question is how to suppress these messages, when it is not me who
> calls library() or require(), but when the package is loaded during R's
> startup through the defaultPackages option.

You could try the --slave command line option on startup.  If that isn't 
sufficient, try getting the maintainer to change the package behaviour, 
or do it yourself.

Duncan Murdoch