Python Pandas - 返回由索引选择的值的新索引
要返回由索引选择的值的新索引，请使用Pandas中的方法。首先，导入所需的库——index.take()
import pandas as pd
创建熊猫索引-
index = pd.Index(['Electronics','Accessories','Decor', 'Books', 'Toys'], name ='Products')
显示熊猫指数-
print("Pandas Index...\n",index)获取由索引选择的值的新索引-
print("\nA new Index of the values selected by the indices...\n",index.take([1,2]))示例
以下是代码-
import pandas as pd
#创建Pandas索引
index = pd.Index(['Electronics','Accessories','Decor', 'Books', 'Toys'], name ='Products')
#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)
#获取索引选择的值的新索引
print("\nA new Index of the values selected by the indices...\n",index.take([1,2]))输出结果这将产生以下输出-
Pandas Index... Index(['Electronics', 'Accessories', 'Decor', 'Books', 'Toys'], dtype='object', name='Products') Number of elements in the index... 5 The dtype object... object A new Index of the values selected by the indices... Index(['Accessories', 'Decor'], dtype='object', name='Products')