PluginR

R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms, Windows and MacOS

This plugin, which can be obtained from Mods, allows to execute R commands in a wiki page and show the results in that page also. Data for the program can be dynamically referenced from tracker item attachments. See an pre-configured example using the profile: http://profiles.tikiwiki.org/r_test

1. Requirements

The R package. On GNU/Linux and similar systems, you can install the base package with something like:

sudo apt-get install r-base r-base-dev r-recommended

or

yum install R R-devel R-lattice

depending on the GNU/Linux distribution that you use.

Once installed, you can start the R console in a terminal by typing "R".

The R package in the server needs the following extra packages for processing xml file types:

• libxml2-dev (from debian GNU/Linux system, or similar name under other GNU/Linux distributions)

And these R packages need to be installed also in the server:

• R4X
• XML
• ... (not finished yet)

You can install them with these commands from the R console:

install.packages("XML", repos = "http://www.omegahat.org/R")
install.packages("R4X", repos = "http://R-Forge.R-project.org")

Of course you can use some nice GUI programs on top of R, like the nice multiplatform RKWard: http://rkward.sf.net

2. Testing environment:

• R 2.8.1 (from repos under Ubuntu Jaunty 9.04)

3. Plugin Files

3.1. wiki-plugin_r.php

In mods svn, since August 4th, 2009.

lib/wiki-plugins/wikiplugin_r.php code:

3.2. .htaccess

temp/.htaccess code:

4. How it works

The R script is written within the plugin tags The data file to be processed can be assigned with values provided within the R tags, or uploaded as attachment to a tracker item, and from there, passed to the R plugin with the param attId. The data inside the file is assigned to the R variable data, which can be referenced and used inside the R script in the wiki page.

5. Documentation

See the documentation at: http://doc.tikiwiki.org/PluginR

ToDo

[+]

6. References

• http://www.r-project.org
• http://mars.wiwi.hu-berlin.de/mediawiki/sk/index.php/R_Extension_for_MediaWiki_v0.06
• http://mars.wiwi.hu-berlin.de/mediawiki/slides/index.php/Integration_of_R_into_wikis_-_Raw_Output
• http://addictedtor.free.fr/graphiques/

Special thanks to Rodrigo, Luci and Louis-Philippe for their help and advice to develop this plugin.

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