History: Profile_r_test9_rcharts

Source of version: 4

! rCharts
{DIV(float="right")}{img src="http://ramnathv.github.io/rCharts/libraries/frameworks/minimal/images/rCharts.png" desc="http://rcharts.io"}{DIV}
-+__rCharts__+- is an R package to create, customize and publish interactive javascript visualizations from R using a familiar lattice style plotting interface. It has been created by [http://github.com/ramnathv|Ramnath Vaidyanathan]. See more here: http://rcharts.io/

Below you will find a series of examples of nice charts using -+__rCharts__+- and the corresponding javascript library used in each case.

__Page contents__:
{maketoc title="" levels="2,3"}

!! Introduction
For these examples to work in a website, you need to change the location of the library they look for. By default they are set to use the library included in the R package rCharts, but the webserver usually can't access directly those libraries, since they are out of its reach. To avoid this issue, we can create an alias in the apache configuration for the website.

You need to open the apache configuration file, whch might be located at -+/etc/apache2/sites-enabled/000-default+- (adapt to your case)
{CODE(colors="shell", ln="1", caption="Command to open the file for edition in a shell as root")}
nano /etc/apache2/sites-enabled/000-default
{CODE}

{CODE(colors="html4strict", ln="1", caption="Portion to add to /etc/apache2/sites-enabled/000-default or equivalent for your site with Apache 2.2")}
	Alias /rcharts_libraries/ "/usr/local/lib/R/site-library/rCharts/libraries/"
	<Directory "/usr/local/lib/R/site-library/rCharts/libraries/">
	    Options All
	    AllowOverride All
	    Order allow,deny
	    Allow from all
	</Directory>
{CODE}

Then you can save it (-+Ctrl+X+- in nano editor)

The whole configuration file for the site should look like the example below (adapt it to your case):
{CODE(colors="html4strict", ln="1", caption="Example of configuration file for the website")}
<VirtualHost *:80>
	ServerAdmin webmaster@example.com

	DocumentRoot /var/www
	<Directory />
		Options FollowSymLinks
		AllowOverride None
	</Directory>
	<Directory /var/www/>
		Options Indexes FollowSymLinks MultiViews
		AllowOverride All
		Order allow,deny
		Satisfy Any
		Allow from all
	</Directory>

	Alias /rcharts_libraries/ "/usr/local/lib/R/site-library/rCharts/libraries/"
	<Directory "/usr/local/lib/R/site-library/rCharts/libraries/">
	    Options All
	    AllowOverride All
	    Order allow,deny
	    Allow from all
	</Directory>

	ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
	<Directory "/usr/lib/cgi-bin">
		AllowOverride None
		Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
		Order allow,deny
		Allow from all
	</Directory>

	ErrorLog ${APACHE_LOG_DIR}/error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
{CODE}

Then restart the webserver  (adapt to your case):
{CODE(colors="shell", ln="1", caption="Command to restart apache2 in GNU/Linux boxes as root")}
service apache2 restart
{CODE}

At this time you can already use the javascript and css files provided in the package rCharts from your R scripts in Tiki, with the base url __http://example.com/rcharts_libraries/__

!!!! Tweaks for Apache 2.4
If you have the webserver Apache 2.4 (likely if you have Ubuntu 13.10 Saucy, for instance), the you need to adjust your vhost:

!!!!!# First: +/- on Options:
Some Options parameters needs the +/- syntax. [http://httpd.apache.org/docs/current/mod/core.html#options|Read more here]. This might be especially important when mixing +/- on some directives (read the previous link to see more).

Change:
{CODE()}
Options Indexes FollowSymLinks MultiViews
{CODE}

to:
{CODE()}
Options +Indexes +FollowSymLinks +MultiViews
{CODE}

!!!!!# Second: Allow/Deny
Apache now does access control via [http://httpd.apache.org/docs/trunk/mod/mod_authz_host.html|mod_authz_host]

Change:

{CODE()}
Order allow,deny
Allow from all
{CODE}

to:
{CODE()}
Require all granted
{CODE}

Some more info here on [http://httpd.apache.org/docs/trunk/upgrading.html|upgrading from Apache 2.2 to 2.4].

!! Examples
{LISTPAGES(showNameOnly="y",find="r_test9_rcharts_",sort="pageName_asc")}{LISTPAGES}

!! Credits

Most of the implementation in -+__rCharts__+- seems to be inspired by [https://github.com/metagraf/rHighcharts|rHighcharts] and [https://github.com/metagraf/rVega|rVega]. The author have reused some code from these packages verbatim, and would like to acknowledge the efforts of its corresponding author [https://github.com/reinholdsson|Thomas Reinholdsson].

!! License

-+__rCharts__+- is licensed under the MIT License. However, the Polycharts JavaScript library that is included in this package is not free for commercial use, and is licensed under Creative Commons 3.0 Attribution & Non-commercial. Read more about its license at http://polychart.com/js/license.

History

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Information	Version
Fri 14 of Oct, 2016 09:17 GMT-0000 Xavi (as xavidp - admin) Mass search and replace	7	Actions View Source
Thu 09 of Jun, 2016 12:40 GMT-0000 Xavier de Pedro updated to apache 2.4	6	Actions View Source
Tue 28 of Jan, 2014 21:08 GMT-0000 Xavier de Pedro updated find string	5	Actions View Source
Sat 18 of Jan, 2014 12:52 GMT-0000 Xavier de Pedro added info for when apache 2.4	4	Actions View Source
Tue 07 of Jan, 2014 13:53 GMT-0000 Xavier de Pedro updated with two digits in page names	3	Actions View Source
Tue 17 of Dec, 2013 17:02 GMT-0000 Xavier de Pedro added category	2	Actions View Source
Tue 17 of Dec, 2013 17:01 GMT-0000 Xavier de Pedro first info	1	Actions View Source

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History: Profile_r_test9_rcharts

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History: Profile_r_test9_rcharts

Source of version: 4

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