12.30 龙卷风图
<- data.frame(
dat variable = c("A", "B", "A", "B"),
Level = c("Top-2", "Top-2", "Bottom-2", "Bottom-2"),
value = c(.8, .7, -.2, -.3)
)ggplot(dat, aes(x = variable, y = value, fill = Level)) +
geom_bar(position = "identity", stat = "identity") +
scale_y_continuous(labels = abs) +
coord_flip() +
theme_minimal()
Tornado diagram 主要用于敏感性分析,比较不同变量的重要性程度。条形图 geom_bar()
图层的变体,模型权重可视化的手段,仅限于广义线性模型。