如何在Python中绘制数据框列中唯一条目的条形图？

import matplotlib.pyplot as plt
import pandas as pd

df = pd.DataFrame({'Category': ['A', 'B', 'A', 'C', 'B', 'A']})

category_counts = df['Category'].value_counts()

fig, ax = plt.subplots()
ax.set_title('Bar Chart of Unique Items in Category Column')
ax.set_xlabel('Category')
ax.set_ylabel('Count')

ax.bar(category_counts.index, category_counts.values)

plt.show()

import matplotlib.pyplot as plt
import pandas as pd

# 创建示例数据框
df = pd.DataFrame({'Category': ['A', 'B', 'A', 'C', 'B', 'A']})

# 计算每个唯一条目的频数
category_counts = df['Category'].value_counts()

# 创建条形图对象并设置标题和坐标轴标签
fig, ax = plt.subplots()
ax.set_title('Bar Chart of Unique Items in Category Column')
ax.set_xlabel('Category')
ax.set_ylabel('Count')

# 绘制条形图
ax.bar(category_counts.index, category_counts.values)

# 显示图形
plt.show()