有一个相似的数据帧:
BirthYear Sex Area Count
2015 W Dhaka 6
2015 M Dhaka 3
2015 W Khulna 1
2015 M Khulna 8
2014 M Dhaka 13
2014 W Dhaka 20
2014 M Khulna 9
2014 W Khulna 6
2013 W Dhaka 11
2013 M Dhaka 2
2013 W Khulna 8
2013 M Khulna 5
2012 M Dhaka 12
2012 W Dhaka 4
2012 W Khulna 7
2012 M Khulna 1
现在我想在熊猫中创建一个条形图,只显示2015年出生的雄性和雌性。 代码:
^{pr2}$执行之后,IDLE显示以下错误:
Traceback (most recent call last):
File "C:\Users\sabid\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas\indexes\base.py", line 1945, in get_loc
return self._engine.get_loc(key)
File "pandas\index.pyx", line 137, in pandas.index.IndexEngine.get_loc (pandas\index.c:4066)
File "pandas\index.pyx", line 159, in pandas.index.IndexEngine.get_loc (pandas\index.c:3930)
File "pandas\hashtable.pyx", line 675, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:12408)
File "pandas\hashtable.pyx", line 683, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:12359)
KeyError: 'BirthYear'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:/Users/sabid/Dropbox/Freelancing/data visualization python/pie.py", line 8, in <module>
df=df.loc[df["StichtagDatJahr"]==2015]
File "C:\Users\sabid\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas\core\frame.py", line 1997, in __getitem__
return self._getitem_column(key)
File "C:\Users\sabid\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas\core\frame.py", line 2004, in _getitem_column
return self._get_item_cache(key)
File "C:\Users\sabid\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas\core\generic.py", line 1350, in _get_item_cache
values = self._data.get(item)
File "C:\Users\sabid\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas\core\internals.py", line 3290, in get
loc = self.items.get_loc(item)
File "C:\Users\sabid\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas\indexes\base.py", line 1947, in get_loc
return self._engine.get_loc(self._maybe_cast_indexer(key))
File "pandas\index.pyx", line 137, in pandas.index.IndexEngine.get_loc (pandas\index.c:4066)
File "pandas\index.pyx", line 159, in pandas.index.IndexEngine.get_loc (pandas\index.c:3930)
File "pandas\hashtable.pyx", line 675, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:12408)
File "pandas\hashtable.pyx", line 683, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:12359)
KeyError: 'BirthYear'
我从this link得知发生这种情况是因为'BirthYear'列名前面有一些标题。 但我不知道如何删除头,使代码工作。 有什么有效的解决办法吗?在
我想你想要这样的输出:
我不确定这一点,但我认为使用
pivot
方法会把你搞砸。您不需要使用pivot
,因为agg_df
基本上是一个透视表。下面是我用来创建图形的代码:可以重命名列。在
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