大家好,我正在看R中的一些山脊线图,更具体地说是在“ ggridges简介”一文中,我的目标是制作此图,但不要重叠:
library(ggplot2)
library(ggridges)
ggplot(iris, aes(x = Sepal.Length, y = Species, fill = 0.5 - abs(0.5 - stat(ecdf)))) +
stat_density_ridges(geom = "density_ridges_gradient", calc_ecdf = TRUE) +
scale_fill_viridis_c(name = "Tail probability", direction = -1)
通过阅读同一篇文章,可以添加重叠:
+ geom_density_ridges(scale = 0.9)
但是由于某种原因我遇到了这个错误:
Error in 0.5 - ecdf : non-numeric argument to binary operator
谢谢
答案 0 :(得分:0)
要获得所需的结果,请去除第二个geom_density_ridges
(这会导致错误),然后只需将scale = 0.9
添加到第一层:
library(ggplot2)
library(ggridges)
ggplot(iris, aes(x = Sepal.Length, y = Species, fill = 0.5 - abs(0.5 - stat(ecdf)))) +
stat_density_ridges(geom = "density_ridges_gradient", calc_ecdf = TRUE, scale = 0.9) +
scale_fill_viridis_c(name = "Tail probability", direction = -1)
#> Picking joint bandwidth of 0.181