KeyError in Pandas

Question

Ich versuche, ein Beispiel für Zeitreihen zu machen. Here is the link

Ich habe einen Fehler in diesem Stück Code:

dta.index = pd.Index(sm.tsa.datetools.dates_from_range('1700', '2008')) 
del dta["YEAR"] 

Der Fehler wie folgt aussieht:

KeyError         Traceback (most recent call last) 
C:\ProgramData\Anaconda3\lib\site-packages\pandas\indexes\base.py in 
get_loc(self, key, method, tolerance) 
    2133    try: 
-> 2134     return self._engine.get_loc(key) 
    2135    except KeyError: 

pandas\index.pyx in pandas.index.IndexEngine.get_loc (pandas\index.c:4433)() 

pandas\index.pyx in pandas.index.IndexEngine.get_loc (pandas\index.c:4279)() 

pandas\src\hashtable_class_helper.pxi in 
pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13742)() 

pandas\src\hashtable_class_helper.pxi in 
pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13696)() 

KeyError: 'YEAR' 

During handling of the above exception, another exception occurred: 

KeyError         Traceback (most recent call last) 
<ipython-input-22-5287e8e754f5> in <module>() 
     1 dta.index = pd.Index(sm.tsa.datetools.dates_from_range('1700', '2008')) 
----> 2 del dta["YEAR"] 

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\generic.py in 
__delitem__(self, key) 
    1640    # there was no match, this call should raise the appropriate 
    1641    # exception: 
-> 1642    self._data.delete(key) 
    1643 
    1644   # delete from the caches 

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\internals.py in 
delete(self, item) 
    3600   Delete selected item (items if non-unique) in-place. 
    3601   """ 
-> 3602   indexer = self.items.get_loc(item) 
    3603 
    3604   is_deleted = np.zeros(self.shape[0], dtype=np.bool_) 

C:\ProgramData\Anaconda3\lib\site-packages\pandas\indexes\base.py in 
get_loc(self, key, method, tolerance) 
    2134     return self._engine.get_loc(key) 
    2135    except KeyError: 
-> 2136     return 
self._engine.get_loc(self._maybe_cast_indexer(key)) 
    2137 
    2138   indexer = self.get_indexer([key], method=method, tolerance=tolerance) 

pandas\index.pyx in pandas.index.IndexEngine.get_loc (pandas\index.c:4433)() 

pandas\index.pyx in pandas.index.IndexEngine.get_loc (pandas\index.c:4279)() 

pandas\src\hashtable_class_helper.pxi in 
pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13742)() 

pandas\src\hashtable_class_helper.pxi in 
pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13696)() 

KeyError: 'YEAR' 

Irgendwelche Vorschläge, warum es nicht funktioniert?

Der Verweis auf die Originaldaten funktioniert nicht, aber ich habe alle Quelldaten gefunden. Beispiel für Eingabedaten:

Date  Yearly Mean  Yearly Mean Number of  Definitive/ 
       Total Sunspot Standard  Observations Provisional 
        Number  Deviation     Indicator 
0 2008-12-31  4.2    2.5   6644.0   1.0 
1 2007-12-31 12.6    2.7   6841.0   1.0 
2 2006-12-31 24.7    3.5   6370.0   1.0 
3 2005-12-31 45.8    4.7   7084.0   1.0 
4 2004-12-31 65.3    5.9   6882.0   1.0 
... 

Answer 1

Es Sie Spalte Date von drop entfernen müssen scheint:

dta = dta.drop('Date', axis=1, level=0) 

Oder:

dta = dta.drop('Date', axis=1) 

Oder vielleicht:

del dta["Date"]