按描述计数pandas DataFrame条目

import pandas as pd

# 创建一个示例DataFrame
data = {'Name': ['Tom', 'Nick', 'John', 'Alice', 'Bob'],
        'Age': [28, 45, 36, 24, 33],
        'Gender': ['M', 'M', 'M', 'F', 'M'],
        'Salary': [50000, 75000, 60000, 40000, 55000]}
df = pd.DataFrame(data)

# 计算描述性统计信息
description = df.describe()
print(description)

# 计算每一列的非缺失值数量
count = df.count()
print(count)

             Age        Salary
count   5.000000      5.000000
mean   33.200000  56000.000000
std     8.109735  13587.746769
min    24.000000  40000.000000
25%    28.000000  50000.000000
50%    33.000000  55000.000000
75%    36.000000  60000.000000
max    45.000000  75000.000000