Python Pandas - 检查索引是否具有唯一值
如需检查索引是否具有唯一值,请使用index.is_unique。
首先,导入所需的库 −
import pandas as pd
让我们创建索引 −
index = pd.Index([50, 40, 30, 20, 10])
显示索引 −
print("Pandas Index...\n",index)
检查索引是否具有唯一值 −
print("\nIs the Pandas index having unique values?\n",index.is_unique)
示例
以下是代码 −
import pandas as pd # Creating the index index = pd.Index([50, 40, 30, 20, 10]) # Display the index print("Pandas Index...\n",index) # Return an array representing the data in the Index print("\nArray...\n",index.values) # Check if the index is having unique values print("\nIs the Pandas index having unique values?\n",index.is_unique)
输出
这将生成以下代码 −
Pandas Index... Int64Index([50, 40, 30, 20, 10], dtype='int64') Array... [50 40 30 20 10] Is the Pandas index having unique values? True
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