在boxplot中绘制空组 [英] Plot empty groups in boxplot

问题描述

我想绘制一些特定样式的箱形图以进行比较。
但是当一个组为空时，该组未绘制。

I want to plot a lot of boxplots in on particular style to compare them. But when a group is empty the group "isnt ploted".

让我说我有一个数据框：

lets say I have a dataframe:

   a   b
1  1   5
2  1   4
3  1   6
4  1   4
5  2   9
6  2   8
7  2   9
8  3 NaN
9  3 NaN
10 3 NaN
11 4   2
12 4   8

，然后使用箱线图进行绘制：

and I use boxplot to plot it:

boxplot(b ~ a , df)

没有组3的情节
（我无法显示，因为我没有 10个声望）

than I get the plot without group 3 (wich I cant show because I did not have "10 reputation")

我找到了一些通过Google删除空组的解决方案，但是我问题是相反的。

I found some solutions for removing empty groups via google but my problem is the other way around.

然后我通过at = c（1,2,4）找到了解决方案，但是当我用python生成Rscript且不同的组为空时，我希望

And I found the solution via at=c(1,2,4) but as I generate an Rscript with python and different groups are empty I would prefer, that the groups aren't dropped at all.

哦，我认为我没有时间去处理其他软件包。
因此，如果没有这些解决方案，我将不胜感激。

Oh I don't think I have the time to grapple with additional packages. Therefore I would be thankfull for solutions without them.

关于犬，

Regards, canis

推荐答案

您可以通过xp轴上的组

You can get the group on the x-axis by

boxplot(b ~ a , df, na.action=na.pass)

或

boxplot(b~factor(a), df)

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