Seaborn中标值的箱形图 [英] Labeling boxplot in seaborn with median value

问题描述

如何在海洋图中用中位数标记每个箱形图?

How can I label each boxplot in a seaborn plot with the median value?

例如

import seaborn as sns
sns.set_style("whitegrid")
tips = sns.load_dataset("tips")
ax = sns.boxplot(x="day", y="total_bill", data=tips)

如何用中位数或平均值标记每个箱形图?

How do I label each boxplot with the median or average value?

推荐答案

当人们包括样本数据集时，我很喜欢！

I love when people include sample datasets!

import seaborn as sns

sns.set_style("whitegrid")
tips = sns.load_dataset("tips")
box_plot = sns.boxplot(x="day",y="total_bill",data=tips)

medians = tips.groupby(['day'])['total_bill'].median()
vertical_offset = tips['total_bill'].median() * 0.05 # offset from median for display

for xtick in box_plot.get_xticks():
    box_plot.text(xtick,medians[xtick] + vertical_offset,medians[xtick], 
            horizontalalignment='center',size='x-small',color='w',weight='semibold')

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