[R-sig-mediawiki] vagrant mediawiki with r extension question

[Sigbert Klinke]

Hi,

which version of the extension and which version of Mediawiki you are
using. What does the page Special:R say about the directories?

The images are stored in a subdirectory of the Rfiles directory. The
http path is determined in Engine::url which uses $extr->R_URL. This is
set to

$this->R_URL     = $wgServer . $wgScriptPath . DIRECTORY_SEPARATOR .
'Rfiles' . DIRECTORY_SEPARATOR;

in ExtR::__construct.

Just one guess: Did you run the R extension and then later changed
something with directories? The extension stores its pathes etc. in the
file Rfiles/ExtR.dat if it does not exist. Subsequent calls do not
recompute the pathes etc. but read everything from Rfiles/ExtR.dat.
Maybe you just need to delete this file and run a R program such that
the file is regenerated.

Best Sigbert

On 09.02.2015 20:48, Strelzoff, Andrew ERDC-RDE-ITL-MS wrote:
> Hi,
> 
>  We�re attempting to build a mediawiki-based data science application and one key is the R extension.
> 
> We are toying with the Vagrant-install of Mediawiki -
> outline here - http://www.mediawiki.org/wiki/MediaWiki-Vagrant
> 
> Vagrant is essential a scripting platform to set up and run virtual machines.  This is useful because then we can write our application set-up as a vagrant script.
> 
> The R Extension works up to a point � you need to install R, imagemagick and ghostscript on the VM.
> 
> But the paths to generate images are wrong.
> 
> They look like /w/Rfiles/�
> Rather than what they should be � presumably -  $ScriptPath/Rfiles/�
> 
> Please advise
> 
> Thanks
> 
> Andrew Strelzoff
> US Army Corps of Engineers
> 
> 	[[alternative HTML version deleted]]
> 
> 
> 
> _______________________________________________
> R-sig-mediawiki at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-sig-mediawiki
> 

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