pandasでunix時刻をdatetime型に変更する際の注意事項 - Qiita

time2は下記のようにするとエラーが出たので無理やり作った． df["time3"] = df.index.apply(lambda x: datetime.fromtimestamp(x/1000)) --------------------------------------------------------------------------- AttributeError Traceback (most recent call last) <ipython-input-117-0c598f05317f> in <module>() ----> 1 df["time3"] = df.index.apply(lambda x: datetime.fromtimestamp(x/1000)) AttributeError: 'Int64Index' object has no att