我有一个如下所示的数据框(df1):
ID
loc1
loc2
loc3
loc6
loc9
我有另一个数据框(df2),如下所示:
ID Values Fruit
loc1 [0.1,0.2,0.4....] apple
loc2 [0.1,0.2,0.4....] apple
loc3 [0.1,0.2,0.3....] grape
loc4 [0.1,0.2,0.4....] pear
loc5 [0.1,0.1,0.4....] orange
loc6 [0.1,0.1,0.4....] apple
loc7 [0.1,0.2,0.4....] apple
loc8 [0.4,0.1,0.4....] apple
loc9 [0.3,0.2,0.4....] pear
loc10 [0.1,0.2,0.4....] orange
我想使用第一个数据框文件中的键删除第二个文件中的行。我使用了这个,取自Stackedoveflow上的其他地方:
df1[df1.ID.isin(df2)]
这简单地返回:
AttributeError: 'DataFrame' object has no attribute 'ID'
答案 0 :(得分:1)
如果ID是您的索引,那么您需要
df1[df1.index.isin(df2)]
根据df2
的结构,您可能需要df1[df1.index.isin(df2.index)]