Scales for shapes from "Show Me the Numbers"

scale_shape_few() maps discrete variables to up to five easily discernible shapes. It is based on the shape palette suggested in Few (2012).

Usage

scale_shape_few(...)

Arguments

...

Common ggplot2::discrete_scale() parameters.

Value

A ggplot2 scale object.

References

Few, S. (2012) Show Me the Numbers: Designing Tables and Graphs to Enlighten, Analytics Press, p. 208.

See also

few_shape_pal() for the shape palette that this scale uses.

Other shapes few: few_shape_pal()

Examples

library("ggplot2")

ggplot(mtcars, aes(x = wt, y = mpg, shape = factor(gear))) +
  geom_point(size = 3) +
  scale_shape_few()