pandas 如何防止在熊猫的箱线图中绘制异常值
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How to prevent from plotting outlier in boxplot in pandas
提问by Hello lad
I have a DataFrame(called result_df) and want to plot one column with boxplot.
我有一个 DataFrame（称为result_df）并想用箱线图绘制一列。
But certain outliers spoiled the visualization. How could I prevent from ploting outliers?
但是某些异常值破坏了可视化。我怎样才能防止绘制异常值？
Code I used:
我使用的代码：
fig, ax = pl.subplots()
fig.set_size_inches(18.5,10.5)
result_df.boxplot(ax=ax)
pl.show()
回答by ljetibo
Important: I haven't paid enough attention, apparently that happens a lot, and I missed that it's pandasspecific. However from questions I saw it's basically matplotlib for graphing in the background so this could still work. Sorry I failed to be more careful.
重要提示：我没有给予足够的关注，显然这种情况经常发生，我错过了它的pandas具体性。然而，从问题中我看到它基本上是用于在后台绘图的 matplotlib，所以这仍然可以工作。抱歉，我没能更加小心。
Luckily for you there is such a thing. In the manualunder results: dicttitle torwards the bottom of the page it states:
对你来说幸运的是有这样的事情。在页面底部标题下的手册results: dict中，它指出：
fliers: points representing data that extend beyond the whiskers (outliers).
传单：表示超出胡须（异常值）的数据的点。
Setting showfliers=Falsewill hopefully help you.
设置showfliers=False希望对您有所帮助。
I do have to mention though, that I find it really really strange they shortened outliers to fliers. If that doesn't help manualoffers a second solution:
不过我不得不提一下，我发现他们将异常值缩短为传单真的很奇怪。如果这没有帮助，手册提供了第二种解决方案：
sym : str or None, default = None
The default symbol for flier points. Enter an empty string (‘') if you don't want to show fliers. If None, then the fliers default to ‘b+' If you want more control use the flierprops kwarg.
sym : str 或 None，默认 = None
传单点的默认符号。如果您不想显示传单，请输入一个空字符串 ('')。如果没有，则传单默认为 'b+' 如果您想要更多控制，请使用 flierprops kwarg。
