获取箱线图的数据 - Pandas
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Getting Data of a boxplot - Pandas
提问by Manura Omal
I need to get the statistical data which were generated to draw a box plot in Pandas(using dataframe to create boxplots). i.e. Quartile1,Quartile2,Quartile3, lower whisker value, upper whisker value and outliers. I tried the following query to draw the boxplot.
我需要获取生成的统计数据以在 Pandas 中绘制箱线图（使用数据框创建箱线图）。即 Quartile1、Quartile2、Quartile3、下须值、上须值和异常值。我尝试了以下查询来绘制箱线图。
import pandas as pd
df = pd.DataFrame(np.random.rand(100, 5), columns=['A', 'B', 'C', 'D', 'E'])
pd.DataFrame.boxplot(df,return_type = 'both')
Is there a way to do it instead of manually calculating the values?
有没有办法代替手动计算值？
回答by philngo
One option is to use the y data from the plots - probably most useful for the outliers (fliers)
一种选择是使用图中的 y 数据 - 可能对异常值（传单）最有用
_, bp = pd.DataFrame.boxplot(df, return_type='both')
outliers = [flier.get_ydata() for flier in bp["fliers"]]
boxes = [box.get_ydata() for box in bp["boxes"]]
medians = [median.get_ydata() for median in bp["medians"]]
whiskers = [whiskers.get_ydata() for whiskers in bp["whiskers"]]
But it's probably more straightforward to get the other values (including IQR) using either
但是使用以下任一方法获取其他值（包括 IQR）可能更直接
quantiles = df.quantile([0.01, 0.25, 0.5, 0.75, 0.99])
or, as suggested by WoodChopper
或者，按照 WoodChopper 的建议
stats = df.describe()
