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法律研究Python Pandas - 返回索引选择的值的新索引
要用 Pandas 返回索引选择的值的新索引，请使用 index.take() 函数。首先，导入所需的库 -
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)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]))示例
以下为代码 −
import pandas as pd
# Creating Pandas index
index = pd.Index(['Electronics','Accessories','Decor', 'Books', 'Toys'], name ='Products')
# 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)
# Getting a new index of the values selected by indices
print("\nA new Index of the values selected by the indices...\n",index.take([1,2]))输出
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')
更新时间：13-Oct-2021
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