[Rd] path.package() versus system.file() for locating installed package folders

Marc Schwartz marc_schwartz at me.com
Wed Feb 12 18:29:38 CET 2014

On Feb 12, 2014, at 11:05 AM, Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:

> On 12/02/2014 16:28, Marc Schwartz wrote:
>> Hi all,
>> For several years, I have used path.package() to get the path to Perl scripts contained within WriteXLS.
>> I have a request to change this to using system.file(), which would provide the ability to utilize WriteXLS functionality, without having to load the package, which path.package() requires.
>> Based upon my review of the code, I don't see any obvious down sides to making the change, but wanted to solicit comments from anyone that might challenge the change in the code.
>> Thanks in advance.
>> Regards,
>> Marc Schwartz
> I don't think path.package() ever was the right tool: find.package() looks a closer match, and system.file() is a wrapper for it (which was all that was made available for many years: up to R 2.13.0 AFAIR).


I don't, at this point, recall the history as to why I elected to use path.package(), but my guess is that I looked at some subset of other CRAN packages at the time that also included script files and used them as a model. In hindsight, not the best approach.



> -- 
> 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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