multiplot: Multiple plot function
Description
Renders multiple ggplot plots in one image
Usage
multiplot(..., plotlist = NULL, cols = 1, layout = NULL)
Arguments
cols
Number of columns in layout
layout
A matrix specifying the layout. If present, 'cols' is ignored
References
http://www.cookbook-r.com/Graphs/Multiple_graphs_on_one_page_(ggplot2)