更高维度的可视化

R 中的探索性数据分析

Andrew Bray

Assistant Professor, Reed College

三个变量的图

ggplot(cars, aes(x = msrp)) +
  geom_density() +
  facet_grid(pickup ~ rear_wheel)

ch2_4.005.png

ggplot(cars, aes(x = msrp)) +
  geom_density() +
  facet_grid(pickup ~ rear_wheel, labeller = label_both)

ch2_4.008.png

ggplot(cars, aes(x = msrp)) +
  geom_density() +
  facet_grid(pickup ~ rear_wheel, labeller = label_both)
table(cars$rear_wheel, cars$pickup)

      FALSE TRUE
FALSE   306   12
TRUE     98   12

R 中的探索性数据分析