结合使用geom_boxplot和geom_line

问题描述

我想使用ggplot2组合箱形图和线形图.但是，我在为每个组(g)的连接线(在x轴上的各个类别上连接线)而苦苦挣扎.

I would like to combine a boxplot and a line plot using ggplot2. However, I am struggling to have lines for each group (g) connecting points across the categories on the x-axis.

演示问题:

df <- data.frame(x = rep(letters[1:3],each=5),
                 y = c(1:5,sample(10,5),1:5),
                 g = rep(LETTERS[1:5],3) )

library(ggplot2)
ggplot(df, aes(x=x,y=y)) + geom_boxplot() + geom_point(aes(colour = g))

我想有一条连接所有A点的线，一条连接所有B点的线，依此类推.

I want to have a line connecting all A points, a line connecting all B points and so on.

我在这里查看了一些答案，但是我无法将它们合并.他们建议使用group=1，但这不适合我在g中每个组的单独行.可以使用stat_summary吗?

I have looked at some answers here but I cannot incorporate them. They suggest using group=1 but this will not suit my individual lines for each group in g. Is it possible using stat_summary maybe?

推荐答案

... +  geom_line(aes(group = g))

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