cogdf: a data frame of cognostics, prepared with as_cognostics
panel_example: an example object of one panel of a display (can be trellis, ggplot2, or htmlwidget object)
base_path: the base directory of the trelliscope application
id: a unique id for the application
name: name of the display
group: group that the display belongs to
desc: description of the display
height: height in pixels of each panel
width: width in pixels of each panel
md_desc: optional string of markdown that will be shown in the viewer for additional context about the display
state: the initial state the display will open in
jsonp: should json for display object be jsonp (TRUE) or json (FALSE)?
split_sig: optional string "signature" specifying the data splitting
panel_img_col: which column (if any) is a panel image column?
self_contained: should the Trelliscope display be a self-contained html document?
thumb: should a thumbnail be created?
split_layout: boolean that determines if the layout is split into components like a facet_grid vs. individual panels like facet_wrap. Only applies to ggplot2 plot objects.
split_aspect: list indicating aspect ratios of axes for a split layout. Only applies to ggplot2 plot objects.
has_legend: should a legend be reported for split_layout
pb: optional progress bar object to pass in and use to report progress