geom_density: Display a smooth density estimate.

ggplot(diamonds, aes(carat)) +  geom_density()  ggplot(diamonds, aes(carat)) +  geom_density(adjust = 1/5) ggplot(diamonds, aes(carat)) +  geom_density(adjust = 5)  ggplot(diamonds, aes(depth, colour = cut)) +  geom_density() +  xlim(55, 70) ggplot(diamonds, aes(depth, fill = cut, colour = cut)) +  geom_density(alpha = 0.1) +  xlim(55, 70)   # Stacked density plots: if you want to create a stacked density plot, you # probably want to 'count' (density * n) variable instead of the default # density  # Loses marginal densities ggplot(diamonds, aes(carat, fill = cut)) +  geom_density(position = "stack") # Preserves marginal densities ggplot(diamonds, aes(carat, ..count.., fill = cut)) +  geom_density(position = "stack")  # You can use position="fill" to produce a conditional density estimate ggplot(diamonds, aes(carat, ..count.., fill = cut)) +  geom_density(position = "fill")