multiplot: Multiple plot function.
In cfbeuchel/CarlHelpR: A Package With Functions

Description Usage Arguments Details Examples

Plot any number of plots in one panel.

1	multiplot(..., plotlist = NULL, file, cols = 1, layout = NULL)

`...`	...
`plotlist`	...
`file`	...
`cols`	...
`layout`	...

Source: http://www.cookbook-r.com/Graphs/Multiple_graphs_on_one_page_(ggplot2)/

## Not run: 
ggplot objects can be passed in ..., or to plotlist (as a list of ggplot objects)
- cols:   Number of columns in layout
- layout: A matrix specifying the layout. If present, 'cols' is ignored.

If the layout is something like matrix(c(1,2,3,3), nrow=2, byrow=TRUE),
then plot 1 will go in the upper left, 2 will go in the upper right, and
3 will go all the way across the bottom.

## End(Not run)