concat thows an AssertionError when passed a ciollection of mixed Series and Dataframes e.g.
s1 = pd.TimeSeries(np.sin(linspace(0, 2*pi, 100)),
index=pd.date_range('01-Jan-2013',
periods=100, freq='H'))
s2 = pd.TimeSeries(np.cos(linspace(0, 2*pi, 100)),
index=pd.date_range('01-Jan-2013',
periods=100, freq='H'))
df = pd.DataFrame(np.cos(linspace(0, 2*pi,
100)).reshape(-1,1),
index=pd.date_range('01-Jan-2013',
periods=100, freq='H'))
In [23]: pd.concat([df,df], axis=1).shape
Out[23]: (100, 2)
In [24]: pd.concat([s1,s2], axis=1).shape
Out[24]: (100, 2)
In [25]: pd.concat([s1,s2,s1], axis=1).shape
Out[25]: (100, 3)
In [26]: pd.concat([s1,df,s2], axis=1).shape
Traceback (most recent call last):
File "<ipython-input-9-4512588e71f2>", line 1, in <module>
pd.concat([s1,df,s2], axis=1).shape
File "c:\dev\code\pandas\pandas\tools\merge.py", line 881, in concat
return op.get_result()
File "c:\dev\code\pandas\pandas\tools\merge.py", line 960, in get_result
columns=self.new_axes[1])
File "c:\dev\code\pandas\pandas\core\frame.py", line 376, in __init__
mgr = self._init_dict(data, index, columns, dtype=dtype)
File "c:\dev\code\pandas\pandas\core\frame.py", line 505, in _init_dict
dtype=dtype)
File "c:\dev\code\pandas\pandas\core\frame.py", line 5181, in _arrays_to_mgr
mgr = BlockManager(blocks, axes)
File "c:\dev\code\pandas\pandas\core\internals.py", line 499, in __init__
self._verify_integrity()
File "c:\dev\code\pandas\pandas\core\internals.py", line 584, in _verify_integrity
raise AssertionError('Block shape incompatible with manager')
AssertionError: Block shape incompatible with manager
In [27]: pd.__version__
Out[27]: '0.10.0.dev-fbd77d5'
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4