Add reference boxes around each cell of the glyphmap. — add_ref_boxes • GGally

Add reference boxes around each cell of the glyphmap.

add_ref_boxes(
  data,
  var_fill = NULL,
  color = "white",
  size = 0.5,
  fill = NA,
  ...
)

Arguments

data: A glyphmap structure.
var_fill: Variable name to use to set the fill color
color: Set the color to draw in, default is "white"
size: Set the line size, default is 0.5
fill: fill value used if var_fill is NULL
...: other arguments passed onto ggplot2::geom_rect()