Change legend symbols to filled circles

Change legend symbols to filled circles

Usage

draw_key_dubois(data, params, size)

Arguments

data

A single row data frame containing the scaled aesthetics to display in this key.

params

A list of additional parameters supplied to the geom.

size

Scaled size of key circle

Value

A grid grob.

Examples

library(ggplot2)
p <- ggplot(economics, aes(date, psavert, fill = "savings rate"))
# key glyphs can be specified by their name
p +
  geom_point(
    shape = 21,
    key_glyph = "dubois")


# key glyphs can be specified via their drawing function
p +
  geom_point(
    shape = 21,
    key_glyph = draw_key_dubois)