scale_color_grey
ARGUMENTS
no arguments
without the scale
guide
breaks
na.value
start and end
na.translate
labels
name
mpg$cyl <- as.factor(mpg$cyl)
ggplot(mpg, aes(x = displ, y = hwy, color = cyl)) +
geom_point(size = 4) +
scale_color_grey()
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