熊猫合并返回NaN

dnf封包•2022-12-15•随笔•阅读35

熊猫合并返回NaN

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dtype

的连接列：

#convert first or second to str or intMergeDat['Motor'] = MergeDat['Motor'].astype(str)#Motor['Motor'] = Motor['Motor'].astype(str)#MergeDat['Motor'] = MergeDat['Motor'].astype(int)Motor['Motor'] = Motor['Motor'].astype(int)

#convert first or second to str or int#MergeDat['Motor'] = MergeDat['Motor'].astype(str)Motor['Motor'] = Motor['Motor'].astype(str)MergeDat['Motor'] = MergeDat['Motor'].astype(int)#Motor['Motor'] = Motor['Motor'].astype(int)MergeDat=MergeDat.merge(Motor,how="left")

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