matplotlib barh:如何在两组条之间创建视觉间隙？

import matplotlib.pyplot as plt
import numpy as np

# 生成示例数据
categories = ['A', 'B', 'C', 'D']
group1_values = [10, 15, 7, 12]
group2_values = [8, 11, 9, 6]

# 计算每组条的位置
bar_width = 0.35
bar_positions1 = np.arange(len(categories))
bar_positions2 = bar_positions1 + bar_width + 0.1  # 增加0.1的间隔

# 创建图表对象
fig, ax = plt.subplots()

# 绘制两组条
ax.barh(bar_positions1, group1_values, height=bar_width, label='Group 1')
ax.barh(bar_positions2, group2_values, height=bar_width, label='Group 2')

# 设置刻度和标签
ax.set_yticks(bar_positions1 + bar_width / 2)
ax.set_yticklabels(categories)
ax.invert_yaxis()  # 反转y轴，使顶部为第一个条

# 添加图例
ax.legend()

# 显示图表
plt.show()