在中值的標籤中標註箱形圖

Question

如何在中值的情況下爲每個箱箱標註一張沙布的標圖？

E.g.

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

如何標記每個boxplot的中位數或平均值？

Answer 1

我可以說，我喜歡它，當人們包括樣本數據集。一個健康的+1給你！

import seaborn as sns, numpy as np 

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

medians = tips.groupby(['day'])['total_bill'].median().values 
median_labels = [str(np.round(s, 2)) for s in medians] 

pos = range(len(medians)) 
for tick,label in zip(pos,ax.get_xticklabels()): 
    ax.text(pos[tick], medians[tick] + 0.5, median_labels[tick], 
      horizontalalignment='center', size='x-small', color='w', weight='semibold')