{r setup, message=FALSE, warning=FALSE, include=FALSE} knitr::opts_chunk$set(eval = FALSE, eval=F)
```{r} library(ggplot2) library(ggridges)
ggplot(diamonds, aes(x = price, y = cut)) + geom_density_ridges(scale = 4) + theme_ridges() + scale_y_discrete(expand = c(0.01, 0)) + # will generally have to set the expand option scale_x_continuous(expand = c(0, 0)) # for both axes to remove unneeded padding #> Picking joint bandwidth of 458 ```
注意x是连续变量，y需要切bin。 参考官网。 这是一篇教程，但是感觉太easy了。