Traceback (most recent call last): File "D:\university\python\work space\lib\site-packages\pandas\core\indexes\base.py", line 3653, in get_loc return self._engine.get_loc(casted_key) File "pandas\_libs\index.pyx", line 147, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\index.pyx", line 176, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\hashtable_class_helper.pxi", line 7080, in pandas._libs.hashtable.PyObjectHashTable.get_item File "pandas\_libs\hashtable_class_helper.pxi", line 7088, in pandas._libs.hashtable.PyObjectHashTable.get_item KeyError: 'message' The above exception was the direct cause of the following exception: Traceback (most recent call last): File "D:\university\python\workspace\tf1.py", line 104, in <module> result = processing_feature(file_name) File "D:\university\python\workspace\tf1.py", line 32, in processing_feature trace['message'] = trace['service_name'] + trace['message'] File "D:\university\python\work space\lib\site-packages\pandas\core\frame.py", line 3761, in __getitem__ indexer = self.columns.get_loc(key) File "D:\university\python\work space\lib\site-packages\pandas\core\indexes\base.py", line 3655, in get_loc raise KeyError(key) from err KeyError: 'message'

Python小白逆袭大神：Day3练习和作业代码

Traceback (most recent call last): File "E:\anaconda\lib\site-packages\pandas\core\indexes\range.py", line 385, in get_loc return self._range.index(new_key) ValueError: 0 is not in range The above exception was the direct cause of the following exception: Traceback (most recent call last): File "F:\pythonproject\ARIMA-GRACH\6.py", line 34, in <module> arima_pred = arima_result.forecast()[0][0] File "E:\anaconda\lib\site-packages\pandas\core\series.py", line 958, in getitem return self._get_value(key) File "E:\anaconda\lib\site-packages\pandas\core\series.py", line 1069, in _get_value loc = self.index.get_loc(label) File "E:\anaconda\lib\site-packages\pandas\core\indexes\range.py", line 387, in get_loc raise KeyError(key) from err KeyError: 0

这个错误是由于 test_ts 的索引从0开始，而 pd.Series([test_ts[i]], index=[test_ts.index[i]-1]) 中的 index 参数是从-1开始的，导致索引对不上。你可以将 index 参数修改为从0开始的，如下所示： ...

Traceback (most recent call last): File "D:\kelly\PycharmProjects\pythonProject8\收益率预测.py", line 119, in <module> n_out = np.sum(datafit['yearmonth'] > 20090101) File "D:\python3.10\lib\site-packages\pandas\core\frame.py", line 3807, in getitem indexer = self.columns.get_loc(key) File "D:\python3.10\lib\site-packages\pandas\core\indexes\base.py", line 3804, in get_loc raise KeyError(key) from err KeyError: 'yearmonth'

这个错误的原因是你尝试在一个 pandas DataFrame 中访问不存在的列 'yearmonth'。'yearmonth' 列可能不存在于该 DataFrame 中，或者你错误地拼写了该列的名称。你可以先检查 DataFrame 中是否存在 'yearmonth' 列...

Traceback (most recent call last): File "D:\Desktop\pymoo-main\pymoo-main\examples\problems\Action_Paper_2 -new.py", line 33, in <module> mine.compute_score(X[col], data['label']) File "E:\python\lib\site-packages\pandas\core\frame.py", line 3505, in getitem indexer = self.columns.get_loc(key) File "E:\python\lib\site-packages\pandas\core\indexes\base.py", line 3623, in get_loc raise KeyError(key) from err KeyError: 'label'

这是一个 KeyError 错误，意味着你的代码中使用了一个不存在的键值（即列名）。具体地，在执行 mine.compute_score(X[col], data['label']) 这一行代码时，出现了一个名为 'label' 的键值不存在的错误。...

Traceback (most recent call last): File "D:\Python\lib\site-packages\pandas\core\indexes\base.py", line 3652, in get_loc return self._engine.get_loc(casted_key) File "pandas\_libs\index.pyx", line 147, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\index.pyx", line 176, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\hashtable_class_helper.pxi", line 7080, in pandas._libs.hashtable.PyObjectHashTable.get_item File "pandas\_libs\hashtable_class_helper.pxi", line 7088, in pandas._libs.hashtable.PyObjectHashTable.get_item KeyError: 'GAFP' The above exception was the direct cause of the following exception: Traceback (most recent call last): File "D:\python001\002.py", line 52, in <module> selected_column_csv = read_csv_file(file_path_csv, column_name_csv) File "D:\python001\002.py", line 27, in read_csv_file selected_column_csv = df[column_name_csv].tolist() File "D:\Python\lib\site-packages\pandas\core\frame.py", line 3761, in getitem indexer = self.columns.get_loc(key) File "D:\Python\lib\site-packages\pandas\core\indexes\base.py", line 3654, in get_loc raise KeyError(key) from err KeyError: 'GAFP'

这是一个Python的KeyError异常，意味着你的代码中出现了一个字典或者关键字中不存在的键值。根据你提供的错误信息，是在使用pandas库中的DataFrame时出现了问题，你可能在试图读取一个名为'GAFP'的列，但是这个列名...

Traceback (most recent call last): File "F:\pythonproject\ARIMA-GRACH\3.py", line 15, in <module> data = data.asfreq('D') File "E:\anaconda\lib\site-packages\pandas\core\frame.py", line 10517, in asfreq return super().asfreq( File "E:\anaconda\lib\site-packages\pandas\core\generic.py", line 7697, in asfreq return asfreq( File "E:\anaconda\lib\site-packages\pandas\core\resample.py", line 2096, in asfreq new_obj = obj.reindex(dti, method=method, fill_value=fill_value) File "E:\anaconda\lib\site-packages\pandas\util\_decorators.py", line 324, in wrapper return func(*args, kwargs) File "E:\anaconda\lib\site-packages\pandas\core\frame.py", line 4804, in reindex return super().reindex(kwargs) File "E:\anaconda\lib\site-packages\pandas\core\generic.py", line 4966, in reindex return self._reindex_axes( File "E:\anaconda\lib\site-packages\pandas\core\frame.py", line 4623, in _reindex_axes frame = frame._reindex_index( File "E:\anaconda\lib\site-packages\pandas\core\frame.py", line 4642, in _reindex_index return self._reindex_with_indexers( File "E:\anaconda\lib\site-packages\pandas\core\generic.py", line 5032, in _reindex_with_indexers new_data = new_data.reindex_indexer( File "E:\anaconda\lib\site-packages\pandas\core\internals\managers.py", line 679, in reindex_indexer self.axes[axis]._validate_can_reindex(indexer) File "E:\anaconda\lib\site-packages\pandas\core\indexes\base.py", line 4107, in _validate_can_reindex raise ValueError("cannot reindex on an axis with duplicate labels")

这是一个 ValueError 异常，提示不能在一个有重复标签的轴上重新索引。...python # 检查日期标签是否有重复值 print(data.index.duplicated()) # 删除重复的日期标签 data = data[~data.index.duplicated()]

Traceback (most recent call last): File "F:\pythonproject\ARIMA-GRACH\3.py", line 14, in <module> data.index.freq = 'D' File "E:\anaconda\lib\site-packages\pandas\core\indexes\extension.py", line 78, in fset setattr(self._data, name, value) File "E:\anaconda\lib\site-packages\pandas\core\arrays\datetimelike.py", line 891, in freq self._validate_frequency(self, value) File "E:\anaconda\lib\site-packages\pandas\core\arrays\datetimelike.py", line 973, in _validate_frequency raise ValueError( ValueError: Inferred frequency None from passed values does not conform to passed frequency D

你可以尝试使用 Pandas 中的 asfreq() 方法来显式地设置频率，例如： data = data.asfreq('D') 这将会把你的时间序列数据转化为每日的频率。如果你的数据中有缺失值，这个方法还可以用来填充这些缺失值。...

Traceback (most recent call last): File "f:\laohuang\project\AITest_test.py", line 16, in <module> unrate['MONTH'] = a2.Data_processing.month(unrate['DATE']) File "f:\laohuang\project\lhApi\lhPandas.py", line 286, in month month_series = date_series.dt.month File "F:\python\lib\site-packages\pandas\core\generic.py", line 5989, in getattr return object.getattribute(self, name) File "F:\python\lib\site-packages\pandas\core\accessor.py", line 224, in get accessor_obj = self._accessor(obj) File "F:\python\lib\site-packages\pandas\core\indexes\accessors.py", line 580, in new raise AttributeError("Can only use .dt accessor with datetimelike values") AttributeError: Can only use .dt accessor with datetimelike values

这个错误提示是在调用 pandas 的 dt 属性时出现的，错误原因是该属性只能用于处理 datetime 类型的数据。需要检查传入 dt 属性的数据是否为 datetime 类型，如果不是，则需要先将其转换为 datetime 类型，再使用 dt ...

Traceback (most recent call last): File "F:\pythonproject\随机森林\1.py", line 16, in <module> X = data.loc[:, 'DATE'] File "E:\anaconda\lib\site-packages\pandas\core\indexing.py", line 961, in getitem return self._getitem_tuple(key) File "E:\anaconda\lib\site-packages\pandas\core\indexing.py", line 1140, in _getitem_tuple return self._getitem_lowerdim(tup) File "E:\anaconda\lib\site-packages\pandas\core\indexing.py", line 867, in _getitem_lowerdim section = self._getitem_axis(key, axis=i) File "E:\anaconda\lib\site-packages\pandas\core\indexing.py", line 1202, in _getitem_axis return self._get_label(key, axis=axis) File "E:\anaconda\lib\site-packages\pandas\core\indexing.py", line 1153, in _get_label return self.obj.xs(label, axis=axis) File "E:\anaconda\lib\site-packages\pandas\core\generic.py", line 3849, in xs return self[key] File "E:\anaconda\lib\site-packages\pandas\core\frame.py", line 3505, in getitem indexer = self.columns.get_loc(key) File "E:\anaconda\lib\site-packages\pandas\core\indexes\base.py", line 3623, in get_loc raise KeyError(key) from err KeyError: 'DATE'

这个错误是由于你尝试在 DataFrame 中选择一个不存在的列名 'DATE'，导致 Pandas 找不到该列名并引发 KeyError。你需要检查 DataFrame 中是否存在名为 'DATE' 的列，或者确认你输入的列名是否正确。你可以使用 ...

Traceback (most recent call last): File "F:\pythonproject\ARIMA-GRACH\3.py", line 9, in <module> data.index.freq = 'D' # 设置时间频率为天 File "E:\anaconda\lib\site-packages\pandas\core\indexes\extension.py", line 78, in fset setattr(self._data, name, value) File "E:\anaconda\lib\site-packages\pandas\core\arrays\datetimelike.py", line 891, in freq self._validate_frequency(self, value) File "E:\anaconda\lib\site-packages\pandas\core\arrays\datetimelike.py", line 973, in _validate_frequency raise ValueError( ValueError: Inferred frequency None from passed values does not conform to passed frequency D

python import pandas as pd # 将时间序列转换为datetime格式 data['date'] = pd.to_datetime(data['date']) # 设置时间频率为天 data = data.set_index('date') data.index.freq = 'D' 这样就可以设置...

Traceback (most recent call last): File "E:\exel.py", line 11, in <module> name=data.iloc[i]["姓名".decode('utf-8')] File "C:\Python27\lib\site-packages\pandas\core\series.py", line 868, in getitem result = self.index.get_value(self, key) File "C:\Python27\lib\site-packages\pandas\core\indexes\base.py", line 4389, in get_value raise e1 KeyError: u'\u59d3\u540d'

根据你提供的错误信息，可以看到是在使用 Pandas 库读取 Excel 文件时出现了问题。具体来说，是在第 11 行使用 iloc 方法获取 Excel 表格中某一行的数据时，出现了 KeyError 错误。根据错误信息，问题可能出现在...

Traceback (most recent call last): File "E:\exel.py", line 10, in <module> name=data.iloc[i]["姓名".decode('utf-8')] File "C:\Python27\lib\site-packages\pandas\core\series.py", line 868, in getitem result = self.index.get_value(self, key) File "C:\Python27\lib\site-packages\pandas\core\indexes\base.py", line 4389, in get_value raise e1 KeyError: u'\u59d3\u540d' 如何解决

这个错误是由于在 DataFrame 中找不到指定的列名 ... data = pd.read_csv('your_file.csv', encoding='utf-8') 3. 如果以上方法都不能解决问题，建议您提供更多的代码和数据信息，以便我更好地帮助您解决问题。

Traceback (most recent call last): File "F:\pythonproject\ARIMA-GRACH\9.py", line 67, in <module> print('Ljung-Box Statistics of Residuals: ', resid_lb[0]) File "E:\anaconda\lib\site-packages\pandas\core\frame.py", line 3505, in getitem indexer = self.columns.get_loc(key) File "E:\anaconda\lib\site-packages\pandas\core\indexes\base.py", line 3623, in get_loc raise KeyError(key) from err KeyError: 0

python resid_lb = acorr_ljungbox(AGresult.resid, lags=10) print('Ljung-Box Statistics of Residuals: ', resid_lb[0]) # 访问数组中的第一个元素 print('p-values of Residuals: ', resid_lb[1]) # 访问数组...

Traceback (most recent call last): File "D:\pythonproject\data\Work.py", line 32, in <module> data['tip','total_tips'].fillna(data['tip','total_tips'].mean(), inplace=True) File "D:\pythonproject\venv\lib\site-packages\pandas\core\frame.py", line 3761, in getitem indexer = self.columns.get_loc(key) File "D:\pythonproject\venv\lib\site-packages\pandas\core\indexes\base.py", line 3654, in get_loc raise KeyError(key) from err KeyError: ('tip', 'total_tips')

python import pandas as pd data = pd.read_csv('your_data.csv') # 读取数据 data[['tip', 'total_tips']].fillna(data[['tip', 'total_tips']].mean(), inplace=True) 或者： python import pandas ...

Traceback (most recent call last): File "D:\pythonProject9\计算内阻.py", line 116, in <module> U_delt = data.loc[j + 1][k] - data.loc[j][k] File "D:\ProgramData\Anaconda3\lib\site-packages\pandas\core\series.py", line 981, in getitem return self._get_value(key) File "D:\ProgramData\Anaconda3\lib\site-packages\pandas\core\series.py", line 1089, in _get_value loc = self.index.get_loc(label) File "D:\ProgramData\Anaconda3\lib\site-packages\pandas\core\indexes\base.py", line 3804, in get_loc raise KeyError(key) from err KeyError: 108

python for j in range(len(Data) - 2): print("j:", j) print("len(data):", len(data)) # 其他代码... 这将帮助你确定索引错误出现的位置。另外，请确保 Celllist 的长度与 data 中的列数相匹配...

Traceback (most recent call last): File "F:\pythonproject\ARIMA-GRACH\3.py", line 10, in <module> data['DATE'] = pd.to_datetime(data['DATE']) File "E:\anaconda\lib\site-packages\pandas\core\frame.py", line 3505, in getitem indexer = self.columns.get_loc(key) File "E:\anaconda\lib\site-packages\pandas\core\indexes\base.py", line 3623, in get_loc raise KeyError(key) from err KeyError: 'DATE'

python import pandas as pd # 读取数据 data = pd.read_csv('your_data.csv') # 将日期数据转换为日期格式 data['DATE'] = pd.to_datetime(data['your_date_column']) # 将日期作为索引 data.set_index('DATE...

Traceback (most recent call last): File "D:\conda\envs\pythonProject6\lib\site-packages\pandas\core\indexes\base.py", line 3802, in get_loc return self._engine.get_loc(casted_key) File "pandas\_libs\index.pyx", line 138, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\index.pyx", line 165, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\hashtable_class_helper.pxi", line 5745, in pandas._libs.hashtable.PyObjectHashTable.get_item File "pandas\_libs\hashtable_class_helper.pxi", line 5753, in pandas._libs.hashtable.PyObjectHashTable.get_item KeyError: 'Date' The above exception was the direct cause of the following exception: Traceback (most recent call last): File "D:\pythonProject6\main.py", line 18, in <module> HS300['Date'] = pd.to_datetime(HS300['Date']) File "D:\conda\envs\pythonProject6\lib\site-packages\pandas\core\frame.py", line 3807, in getitem indexer = self.columns.get_loc(key) File "D:\conda\envs\pythonProject6\lib\site-packages\pandas\core\indexes\base.py", line 3804, in get_loc raise KeyError(key) from err KeyError: 'Date'

看起来你遇到了一个 KeyError 错误，该错误指出你尝试访问一个不存在的键。具体来说，错误信息显示你尝试在一个名为 "HS300" 的 DataFrame 中访问 "Date" 列，但该列不存在。有几种可能导致这个错误。...

Traceback (most recent call last): File "E:\Python_study\机器学习\课程设计\NN.py", line 62, in <module> y_pred_example = y_pred = model.predict(y_test[0]) File "C:\Users\YU\AppData\Roaming\Python\Python39\site-packages\pandas\core\series.py", line 981, in getitem return self._get_value(key) File "C:\Users\YU\AppData\Roaming\Python\Python39\site-packages\pandas\core\series.py", line 1089, in _get_value loc = self.index.get_loc(label) File "C:\Users\YU\AppData\Roaming\Python\Python39\site-packages\pandas\core\indexes\base.py", line 3805, in get_loc raise KeyError(key) from err KeyError: 0 Process finished with exit code 1

这是一个KeyError错误，发生在pandas.Series的__getitem__方法中。根据错误信息，你是在尝试使用索引0来访问一个Series，但是这个索引在Series的索引中不存在，因此触发了KeyError。你可以检查一下y_test这个Series...

Traceback (most recent call last): File "D:\pythonProject9\计算内阻.py", line 115, in <module> U_delt = data.loc[j + 1][k] - data.loc[j][k] File "D:\ProgramData\Anaconda3\lib\site-packages\pandas\core\series.py", line 981, in getitem return self._get_value(key) File "D:\ProgramData\Anaconda3\lib\site-packages\pandas\core\series.py", line 1089, in _get_value loc = self.index.get_loc(label) File "D:\ProgramData\Anaconda3\lib\site-packages\pandas\core\indexes\base.py", line 3804, in get_loc raise KeyError(key) from err KeyError: 108 进程已结束,退出代码1

python R_list = [] # 创建一个空列表来存储计算结果 for i in range(len(F)): data = data.iloc[F[i][0]:F[i][1] + 1, :] data = data.reset_index(drop=True) # 重置列表索引 for j in range(len(data) - 2...

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