小编all*_*ian的帖子

我正在尝试制作一个图形，该图形的底部有密度图，密度图上方有相应的箱线图。我的密度图和箱线图由分类变量填充/着色。我想不出一种方法让箱线图高于密度图并且也被躲避。这是我到目前为止能够得到的：

d <- mtcars
d$cyl <- as.factor(d$cyl)

fig <- ggplot(data = d) + 
  geom_density(aes(x = mpg, fill = cyl),
               position = "dodge", 
               na.rm = TRUE) +
  geom_boxplot(aes(x = mpg, color = cyl), 
               position = ggstance::position_dodgev(height = 1),
               width = .05, show.legend = FALSE,
               na.rm = TRUE) + 
  facet_grid(~am, scales = "free_x") + 
  scale_fill_brewer(palette = "Set2") + 
  scale_color_brewer(palette = "Set2") +
  theme_minimal() + 
  guides(color = FALSE, fill = FALSE) 
fig

但是，正如您所看到的，这不会将箱线图均匀地移动到密度图上方。我也用过

geom_boxplot(aes(x = mpg, color = cyl), 
            position = position_nudge(x = …