[Rd] Recover source from LazyLoaded installation

[Prof Brian Ripley]

On Mon, 26 Jul 2010, Paul Roebuck wrote:

> I had already tried that but can't get past this:
> Error: package was built before R 2.10.0: please re-install it

He said use lazyLoad, not library.  It works for me:

env <- new.env()
lazyLoad('R/foo', envir = env)
dump(ls(env, all=TRUE), "foo.R", envir=env)

and BTW this is not going to work if S4 objects are involved and if 
the package had a namespace you'll need the NAMESPACE file (or try to 
recover that from the metadata).

>
> Sent from my iPhone
>
> On Jul 25, 2010, at 7:03 PM, Simon Urbanek <simon.urbanek at r-project.org> wrote:
>
>>
>> On Jul 23, 2010, at 2:46 PM, Paul Roebuck wrote:
>>
>>> Is there a means of recovering the source from a package with 
>>> LazyLoad = true? Package is Windows 2.9.1 pure R but have no 
>>> access to original. In R directory, I see <pkgname>, 
>>> <pkgname>.rd[bx], <sysdata>.rd[bx]. Attempting this on OS X 10.6 
>>> with R-2.11.1 if it matters.
>>>
>>
>> ?lazyLoad
>>
>> Cheers,
>> Simon
>>
>>
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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