Installing R Graphics packages
----------------------------------------

.. code:: python

    # from https://gist.github.com/stevenworthington/3178163
    ipak <- function(pkg){
        new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])]
        if (length(new.pkg)) 
            install.packages(new.pkg, dependencies = TRUE, repos = "http://cran.r-project.org")
        sapply(pkg, require, character.only = TRUE)
    }
     
    # usage
    packages <- c("ggplot2",  "gplots", "lattice", "plyr", "reshape2",
                  "RColorBrewer", "grid", "gridExtra", "igraph", "igraphdata")
    suppressMessages(ipak(packages))




.. raw:: html

    <dl class=dl-horizontal>
    	<dt>ggplot2</dt>
    		<dd>TRUE</dd>
    	<dt>gplots</dt>
    		<dd>TRUE</dd>
    	<dt>lattice</dt>
    		<dd>TRUE</dd>
    	<dt>plyr</dt>
    		<dd>TRUE</dd>
    	<dt>reshape2</dt>
    		<dd>TRUE</dd>
    	<dt>RColorBrewer</dt>
    		<dd>TRUE</dd>
    	<dt>grid</dt>
    		<dd>TRUE</dd>
    	<dt>gridExtra</dt>
    		<dd>TRUE</dd>
    	<dt>igraph</dt>
    		<dd>TRUE</dd>
    	<dt>igraphdata</dt>
    		<dd>TRUE</dd>
    </dl>