get_panel: Retrieve the panel or part of a panel of a plot
Description
get_panel() extracts just the main panel from a ggplot or a specified panel
in a faceted plot. get_panel_component() extracts components from the
panel, such as geoms.
Usage
get_panel(plot, panel = NULL, return_all = FALSE)
get_panel_component(panel, pattern)
Value
A gtable object holding the panel(s) or a grob of the component
Arguments
plot
A ggplot or gtable from which to retrieve the panel
panel
An integer indicating which panel to pull. ggplot orders panels
column-wise, so this is in order from the top left down.
return_all
If there is more than one panel, should all be returned
as a list? Default is FALSE.