如何在 pandas 中获取索引列的名称

为了获取 pandas DataFrame 的索引列名称，使用

index_name.py

df.index.name

df.index.name

例如，我们可以打印 TechOverflow 时间序列示例数据集的索引列名称：

index_name_example.py

import pandas as pd

# 加载预构建的时间序列示例数据集
df = pd.read_csv("https://datasets.techoverflow.net/timeseries-example.csv", parse_dates=["Timestamp"])
df.set_index("Timestamp", inplace=True)

print(df.index.name)

import pandas as pd

# 加载预构建的时间序列示例数据集
df = pd.read_csv("https://datasets.techoverflow.net/timeseries-example.csv", parse_dates=["Timestamp"])
df.set_index("Timestamp", inplace=True)

print(df.index.name)

将打印

index_name_output.txt

Timestamp

Timestamp

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