Python Pandas - 更改索引名称


若要更改索引名称,可在 Pandas 中使用 index.rename() 方法。首先,导入必需的库 -

import pandas as pd

创建 Pandas 索引 -

index = pd.Index(['Car','Bike','Airplane', 'Ship','Truck','Suburban'], name ='Transport')

显示 Pandas 索引 -

print("Pandas Index...\n",index)

重命名索引 -

print("\nRename the index...\n",index.rename('Mode_of_Transport'))

示例

以下为代码 -

import pandas as pd

# Creating Pandas index
index = pd.Index(['Car','Bike','Airplane', 'Ship','Truck','Suburban'], name ='Transport')

# Display the Pandas index
print("Pandas Index...\n",index)

# Return the number of elements in the Index
print("\nNumber of elements in the index...\n",index.size)

# Return the dtype of the data
print("\nThe dtype object...\n",index.dtype)

# Rename the index
print("\nRename the index...\n",index.rename('Mode_of_Transport'))

输出

将产生以下输出 -

Pandas Index...
Index(['Car', 'Bike', 'Airplane', 'Ship', 'Truck', 'Suburban'], dtype='object', name='Transport')

Number of elements in the index...
6

The dtype object...
object

Rename the index...
Index(['Car', 'Bike', 'Airplane', 'Ship', 'Truck', 'Suburban'], dtype='object', name='Mode_of_Transport')

更新于:2021-10-13

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