分组小提琴图，带分隔小提琴

使用的 seaborn 组件： set_theme()，load_dataset()，violinplot()

import seaborn as sns
sns.set_theme(style="dark")

# Load the example tips dataset
tips = sns.load_dataset("tips")

# Draw a nested violinplot and split the violins for easier comparison
sns.violinplot(data=tips, x="day", y="total_bill", hue="smoker",
               split=True, inner="quart", fill=False,
               palette={"Yes": "g", "No": ".35"})