我使用 Windows PC 上的 jupyter 笔记本。我读了一个数据帧,我调用 tran 如下
tran = pd.read_csv("https://raw.githubusercontent.com/m1ngle/TRCount/main/TRCountUS.csv")
当我查看整个数据框的数据类型时,它效果很好
tran.dtypes
FIPS int64
State object
YMTF int64
MTFPer float64
YFTM int64
FTMPer float64
YNB int64
NBPer float64
YTR int64
YTRper float64
NoTR int64
NoTRPer float64
DK int64
DKPer float64
DNAns int64
DNAPer float64
TotSurveyed int64
StatePop int64
TRPop int64
dtype: object
当我尝试调用或使用任何 float64 列时,我收到错误
tran['MTFPer'].dtype
KeyError Traceback (most recent call last)
~\anaconda3\lib\site-packages\pandas\core\indexes\base.py in get_loc(self, key, method, tolerance)
2645 try:
-> 2646 return self._engine.get_loc(key)
2647 except KeyError:
pandas\_libs\index.pyx in pandas._libs.index.IndexEngine.get_loc()
pandas\_libs\index.pyx in pandas._libs.index.IndexEngine.get_loc()
pandas\_libs\hashtable_class_helper.pxi in pandas._libs.hashtable.PyObjectHashTable.get_item()
pandas\_libs\hashtable_class_helper.pxi in pandas._libs.hashtable.PyObjectHashTable.get_item()
KeyError: 'MTFPer'
During handling of the above exception, another exception occurred:
KeyError Traceback (most recent call last)
<ipython-input-85-2bd9c012f223> in <module>
----> 1 tran['MTFPer'].dtype
~\anaconda3\lib\site-packages\pandas\core\frame.py in __getitem__(self, key)
2798 if self.columns.nlevels > 1:
2799 return self._getitem_multilevel(key)
-> 2800 indexer = self.columns.get_loc(key)
2801 if is_integer(indexer):
2802 indexer = [indexer]
当我使用任何 int64 数据类型时,不会发生此错误。
tran['YMTF'].dtype
dtype('int64')
谁能帮我吗?
潇湘沐
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