Python Pandas - 返回索引值列表
要返回索引值列表,请在 Pandas 中使用 index.to_list() 方法。首先,导入所需的库 -
import pandas as pd
创建 Pandas 索引 −
index = pd.Index([50.4, 10.2, 70.5, 110.5, 90.8, 50.6])
显示 Pandas 索引 −
print("Pandas Index...\n",index)
返回列表 −
print("\nList of the index values...\n",index.to_list())
示例
以下是代码 −
import pandas as pd # Creating Pandas index index = pd.Index([50.4, 10.2, 70.5, 110.5, 90.8, 50.6]) # 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) # return a list print("\nList of the index values...\n",index.to_list())
输出
这将产生以下输出 −
Pandas Index... Float64Index([50.4, 10.2, 70.5, 110.5, 90.8, 50.6], dtype='float64') Number of elements in the index... 6 The dtype object... float64 List of the index values... [50.4, 10.2, 70.5, 110.5, 90.8, 50.6]
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