[Rd] alternatives to do.call() when namespace is attached but not loaded?

Hadley Wickham h.wickham at gmail.com
Tue Feb 24 19:53:47 CET 2015

do.call(sna::snaFunName, args = args)



On Tue, Feb 24, 2015 at 1:29 PM, Skye Bender-deMoll
<skyebend at skyeome.net> wrote:
> Dear R-devel
> I have a function in a package that essentially provides a wrapper for a
> group of functions in another Suggested package (it sets appropriate
> defaults for the context, transforms output, etc).  I've implemented this by
> verifying that the package was loaded with
> require(sna)
> and then
> do.call(snaFunName, args = args)
> The rDevel check is requesting that I use  requireNamespace(sna) instead of
> directly loading the SNA package. This seems reasonable, except that I have
> yet to figure out a way to use do.call to call the function when the
> namespace is attached but package is not loaded. do.call("sna::funName",..)
> doesn't seem to work.
> 1) Can do.call() call functions that are only namespace attached? Is there
> better way to accomplish this without do.call()? For example, should I use
> getAnywhere('funName') ('tho this doesn't seem to permit restricting search
> to a specific namespace..)
> 2) Is this an appropriate of require() instead of requireNamespace() to
> ensure that the Suggested package is loaded and attached? Can I ignore the
> check warning?
> best,
>  -skye
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