如何将 geom_point 添加到 stat_density_ridges

Question

我可以使用此代码绘制 density_ridge。我想在百分位数 0.50 处添加 geom_point 而不更改当前设计。任何帮助将不胜感激。

library(ggplot2)
library(ggridges)

 ggplot(iris, aes(x=Sepal.Length, y=Species, fill = factor(stat(quantile)))) +
  stat_density_ridges(
    geom = "density_ridges_gradient", calc_ecdf = TRUE,
    quantiles = 4, quantile_lines = TRUE
  )

Answer 1

尝试

p + geom_point(data = aggregate(Sepal.Length ~ Species, iris, median),
               aes(x = Sepal.Length, y = Species),
               color = "red",
               size = 5,
               inherit.aes = FALSE)

（看来你一定调用了 viridis 调色板）

数据

library(ggplot2)
library(ggridges)

p <- ggplot(iris, aes(x=Sepal.Length, y=Species, fill = factor(stat(quantile)))) +
  stat_density_ridges(
    geom = "density_ridges_gradient", calc_ecdf = TRUE,
    quantiles = 4, quantile_lines = TRUE
  )

如何将 geom_point 添加到 stat_density_ridges

How to add geom_point to stat_density_ridges

r

ggplot2

ggridges