ggplot use small pie charts as points with geom_point

Question

I would like to make a graph with ggplot as shown below. The idea is to plot \"percentage matches\" between two categorical variables. It is easy to come close by altering the s

Answer 1

Using a plot as the shape for a point is tricky. However, you can side step the issue and get very close to your mockup using facet_grid():

ggplot(temp) + 
  geom_bar(aes(x=1, y=Score), stat="identity") + 
  facet_grid(Exercise~Name) + 
  coord_polar(theta = "y") +
  scale_y_continuous(breaks = NULL) +
  scale_x_continuous(name = element_blank(), breaks = NULL)