要为已创建的 Index 对象设置索引名称,请使用Pandas 中的方法。首先,导入所需的库 -index.set_names()
import pandas as pd
创建熊猫索引 -
index = pd.Index(["Electronics", "Mobile Phones", "Accessories", "Home Decor", "Books"])
显示熊猫指数 -
print("Pandas Index...\n",index)
设置索引名称 -
print("\nSet the index name...\n",index.set_names('Products'))
以下是代码 -
import pandas as pd # 创建 Pandas 索引 index = pd.Index(["Electronics", "Mobile Phones", "Accessories", "Home Decor", "Books"]) # 显示 Pandas 索引 print("Pandas Index...\n",index) # 返回索引中的元素数 print("\nNumber of elements in the index...\n",index.size) # 返回数据的 dtype print("\nThe dtype object...\n",index.dtype) # 设置索引名称 print("\nSet the index name...\n",index.set_names('Products'))输出结果
这将产生以下输出 -
Pandas Index... Index(['Electronics', 'Mobile Phones', 'Accessories', 'Home Decor', 'Books'], dtype='object') Number of elements in the index... 5 The dtype object... object Set the index name... Index(['Electronics', 'Mobile Phones', 'Accessories', 'Home Decor', 'Books'], dtype='object', name='Products')