Python Pandas - 将所有重复的索引值标记为 True
若要将所有重复的索引值标记为 True,请使用 index.duplicated()。将 keep 参数的值设为 False。
首先,导入所需的库 −
import pandas as pd
创建一些重复索引 −
index = pd.Index(['Car','Bike','Airplane','Ship','Airplane'])
显示索引 −
print("Pandas Index with duplicates...\n",index)
将所有重复的索引值标记为 True。将 "keep" 参数设为 "False" −
print("\nIndicating all duplicate index values True...\n", index.duplicated(keep=False))
举例
代码如下 −
import pandas as pd # Creating the index with some duplicates index = pd.Index(['Car','Bike','Airplane','Ship','Airplane']) # Display the index print("Pandas Index with duplicates...\n",index) # Return the dtype of the data print("\nThe dtype object...\n",index.dtype) # get the dimensions of the data print("\nGet the dimensions...\n",index.ndim) # Indicate all duplicate index values as True # Set the "keep" parameter as "False" print("\nIndicating all duplicate index values True...\n", index.duplicated(keep=False))
输出
将生成以下代码 −
Pandas Index with duplicates... Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane'], dtype='object') The dtype object... object Get the dimensions... 1 Indicating all duplicate index values True... [False False True False True]
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