问题描述
我正在处理的当前数据在数据点之间具有不相等的时间间隔。我正在尝试使用 Python 中的插值将数据转换为 15 分钟的时间间隔。这是 csv 文件的前几行: CSV file
我正在尝试使用日期时间列来执行此操作。我只想保留日期时间列和第 5 行代码中列出的列。这是我目前拥有的代码,我尝试重新采样然后插入数据:
df = pd.read_csv('C:/Users/elsam/Documents/Year 3/Final EN3300 Project/Machine Learning/Data/locations/asp/row/noaa/5 min NOAA_0_.csv')
df['datetime'] = pd.to_datetime(df['datetime'])
df.index = df['datetime']
df = df.resample(rule='15min',on='datetime').mean()
df['wd','ws','vis','drb','dpt','asp','rh','cc','precip','sNow'] = df['wd','sNow'].interpolate()
但是,我收到此错误消息:
Traceback (most recent call last):
File "C:\Users\elsam\Documents\Year 3\Final EN3300 Project\Machine Learning\Code\venv\lib\site-packages\pandas\core\indexes\base.py",line 3080,in get_loc
return self._engine.get_loc(casted_key)
File "pandas\_libs\index.pyx",line 70,in pandas._libs.index.IndexEngine.get_loc
File "pandas\_libs\index.pyx",line 101,in pandas._libs.index.IndexEngine.get_loc
File "pandas\_libs\hashtable_class_helper.pxi",line 4554,in pandas._libs.hashtable.PyObjectHashTable.get_item
File "pandas\_libs\hashtable_class_helper.pxi",line 4562,in pandas._libs.hashtable.PyObjectHashTable.get_item
KeyError: ('wd','sNow')
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\elsam\Documents\Year 3\Final EN3300 Project\Machine Learning\Code\Data Compilation.py",line 352,in <module>
df['wd','sNow'].interpolate()
File "C:\Users\elsam\Documents\Year 3\Final EN3300 Project\Machine Learning\Code\venv\lib\site-packages\pandas\core\frame.py",line 3024,in __getitem__
indexer = self.columns.get_loc(key)
File "C:\Users\elsam\Documents\Year 3\Final EN3300 Project\Machine Learning\Code\venv\lib\site-packages\pandas\core\indexes\base.py",line 3082,in get_loc
raise KeyError(key) from err
KeyError: ('wd','sNow')
我不明白为什么我会收到“KeyError”,因为我肯定在 CSV 文件中的代码中列出了列。
解决方法
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