[Rd] library verbose option doesn't stop "Loading required package XYZ"

[David Winsemius]

On Oct 20, 2010, at 6:49 PM, Dominick Samperi wrote:

> Hello,
>
> The library verbose option does not stop numerous messages
> of the form "Loading required package: XYZ". This is inconvenient
> when a package is loaded repeatedly using Rscript.
>
> Is there a way to turn off the "Loading required package"
> messages?

?invisible
 > invisible(require(Hmisc))
 > invisible(library(rms)  )  # no console messages

I do not think this suppress the messages when you attempt to load a  
non-existent package. For that you may need to look at the options()  
setting for warn and warning.expression
>
> One possible work-around is to make packages Suggested
> instead of Required, but this introduces other issues.
>
> Thanks,
> Dominick
>
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David Winsemius, MD
West Hartford, CT