向多个箱形图添加点 [英] Adding points to multiple boxplots

问题描述

如何将点数添加到多个不同长度的箱形图上？

How would you add points to a several boxplots beside one another of varying lengths?

boxplot(box1, box2, box3, box4, beside=T, col=c("grey100", "grey70", "grey50", "grey70"), names=c("box1", "box2", "box3", "box4"), main="all the boxes", las=2)

如果我放入

points() 

<功能我不能添加多个，如果我将它们分开放置，它们将被添加到所有箱形图中，我只想查看相应的点。

function I can't add in more than one and if I put them in separately they will be added to ALL the boxplots and I only want to see the corresponding points.

推荐答案

尝试：

ndata=mtcars[mtcars$carb%in%c(1:4),]
boxplot(mpg ~ carb, data=ndata 
        , beside=T,
        col=c("grey100", "grey70", "grey50", "grey70"),
        names=c("box1", "box2", "box3", "box4"),
        main="all the boxes", las=2)

points(factor(ndata$carb), ndata$mpg,col=3)
points(3,30,col=4,pch=13)
text (3.5,30,"Oops",pos = 4)

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