R小提琴图和箱线图在一起，使填充行为仅对箱线图不同

Question

好的，所以我想将小提琴图与 white 箱线图一起绘制，但我的数据有点棘手。我将来自 data.frame 的数据融化成几列，每一列的值对应于具有两个水平的因子，这里是我的数据的近似值：

library(ggplot2)
library(reshape2)

dat <- list(
  A = rbind(
    data.frame(group = "1",
               vals = rnorm(500)),
    data.frame(group = "2",
               vals = rnorm(100))
  ),
  B = rbind(
    data.frame(group = "1",
               vals = rnorm(500)),
    data.frame(group = "2",
               vals = rnorm(100))
  ),
  C = rbind(
    data.frame(group = "1",
               vals = rnorm(500)),
    data.frame(group = "2",
               vals = rnorm(100))
  )
)

dat.melt <- melt(dat)

我能找到的最好的方法是手动设置填充，但它会同时影响小提琴图和箱线图：

dodge <- position_dodge(width = 1)

p <- ggplot(dat.melt, aes(x = L1, y = value, fill = group))+
  geom_violin(position = dodge)+
  geom_boxplot(width = 0.3,
                 position = dodge,
                 outlier.shape = NA)+
  scale_fill_manual(values=c("white", "white"))

我可以只将箱线图设为白色而不是小提琴图吗？

P.S。我怎样才能只为小提琴制作图例而不显示箱线图？

Answer 1

试试这个：

p <- ggplot(dat.melt, aes(x = L1, y = value)) +
  geom_violin(aes(fill = group), position = dodge) +
  geom_boxplot(aes(group=interaction(group,L1)), 
            width=0.3, fill="white", position=dodge,
            outlier.shape=NA)
print(p)

Answer 2

你也可以试试这个：

ggplot(dat.melt, aes(x = L1, y = value, fill=group))+
  geom_violin(position = position_dodge(width = 1)) +
  geom_boxplot(data = dat.melt, 
               aes(x = L1, y = value, col=group), fill="white", 
               position = position_dodge(width = 1), width=0.3,outlier.shape=NA)+
  geom_boxplot(position = position_dodge(width = 1), alpha=0, width=0.3)

R小提琴图和箱线图在一起，使填充行为仅对箱线图不同

R Violin plots and boxplots together, make fill behave differently only for boxplots

r

ggplot2

melt

reshape2