Python Pandas - 将一组索引选项附加在一起

要将一组索引选项附加到一起，请使用append()Pandas中的方法。首先，导入所需的库-

import pandas as pd

创建熊猫索引-

index1 = pd.Index([10, 20, 30, 40, 50])

显示熊猫指数-

print("Pandas Index...\n",index1)

创建要附加的新索引-

index2 = pd.Index([60, 70, 80])

追加新索引-

print("\nAfter appending...\n",index1.append(index2))

示例

以下是代码-

import pandas as pd #创建Pandas索引 index1 = pd.Index([10, 20, 30, 40, 50]) #显示Pandas索引 print("Pandas Index...\n",index1) #返回索引中的元素数 print("\nNumber of elements in the index...\n",index1.size) #创建要追加的新索引 index2 = pd.Index([60, 70, 80]) #追加新索引 print("\nAfter appending...\n",index1.append(index2))输出结果

这将产生以下输出-

Pandas Index... Int64Index([10, 20, 30, 40, 50], dtype=int64) Number of elements in the index... 5 After appending... Int64Index([10, 20, 30, 40, 50, 60, 70, 80], dtype=int64)