2.5 Statistics Layer

• The statistics layer allows us to plot statistical values calculated from the data

• This is used to transform the input variables to displayed values

# indicate sex using color
ggplot(data = plotdata,
       mapping = aes(x = exper, 
                     y = wage,
                     color = sex)) +
  geom_point(alpha = .7,
             size = 3) +
  geom_smooth(method = "lm", 
              se = FALSE, 
              size = 1.5)