如何制作x轴上有两个类别的堆积条形图？

假设您将数据保存到一个csv名为tmp.csv（导出到csvExcel 中）的文件中，那么此脚本可以构建您想要的图形

import pandas as pd
from matplotlib import pyplot as plt 

tmp = pd.read_csv('tmp.csv')
tmp_small = tmp.drop(['Group', 'Year'], axis=1)
year = tmp.loc[:, 'Year'].values
group = tmp.loc[:, 'Group'].values[[0, 2, 4]]

fig, ax = plt.subplots(figsize=(8, 6))
palette = ['r', 'g', 'b']

for ind in range(6):
    tmp_values = tmp_small.iloc[ind].values
    for count, item in enumerate(tmp_values):
        offset = np.sum(tmp_values[:count]) if count > 0 else 0
        ax.bar(x=ind, width=0.5, height=item, bottom=offset, color=palette[count])
ax.set_xticks(np.arange(len(year)))
ax.set_xticklabels(year)

ax.set_xlim(-1, 6.5)
ax.text(0.3, -10, group[0])
ax.text(2.3, -10, group[1])
ax.text(4.3, -10, group[2])

输出图是