Re: [Rd] Referencing 'inst' directory in installed package

From: Marc Schwartz <marc_schwartz_at_me.com>
Date: Wed, 17 Aug 2011 07:35:41 -0500

On Aug 16, 2011, at 10:17 PM, Jonathan Malmaud wrote:

> Hi,
> My R package has files in the 'inst' directory that it needs to reference. How can the R scripts in my package find out the full path to the 'inst' directory after the package is installed, given that different users may have installed the package to different libraries?
>
> Thanks,
> Jon Malmaud

See ?path.package and ?file.path

Example:

> require(WriteXLS)

Loading required package: WriteXLS

# I am on OSX
> path.package("WriteXLS")

[1] "/Library/Frameworks/R.framework/Versions/2.13/Resources/library/WriteXLS"

I have Perl scripts in my package, which are in the /inst/Perl folder in the package source, so:

> file.path(path.package("WriteXLS"), "Perl/WriteXLS.pl")
[1] "/Library/Frameworks/R.framework/Versions/2.13/Resources/library/WriteXLS/Perl/WriteXLS.pl"

HTH, Marc Schwartz



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