[Tutor] i installed the package statsmodels but i get an error when i use it

[Don Jennings]

On Dec 16, 2013, at 11:56 AM, eva maria gualandi wrote:

> Good afternoon, 
> I installed from https://pypi.python.org/pypi/statsmodels the package statsmodels for python 2.7 (32bit) , i have to do some test statistics for a time series analysis that i can find under statsmodels.tsa. In particular i really need to do a Dickey Fuller test and in agreement with the statsmodels documentation ( from http://statsmodels.sourceforge.net/devel/generated/statsmodels.tsa.stattools.adfuller.html ) i run this simple programm
> 
> import numpy as np
> import statsmodels
> from statsmodels.tsa import stattools
> x = np.array([1,2,3,4,3,4,2,3])
> result = statsmodels.tsa.statools.adfuller(x,1)
> print result
> 
> but unfortunately i get the following error message:
> 
> Traceback (most recent call last):
>   File "C:\Python27\esempio_adftest.py", line 3, in <module>
>     from statsmodels.tsa import stattools
>   File "C:\Python27\lib\site-packages\statsmodels\tsa\stattools.py", line 7, in <module>
>     from statsmodels.regression.linear_model import OLS, yule_walker
>   File "C:\Python27\lib\site-packages\statsmodels\regression\__init__.py", line 1, in <module>
>     from linear_model import yule_walker
>   File "C:\Python27\lib\site-packages\statsmodels\regression\linear_model.py", line 37, in <module>
>     from statsmodels.tools.tools import (add_constant, rank,
>   File "C:\Python27\lib\site-packages\statsmodels\tools\__init__.py", line 1, in <module>
>     from tools import add_constant, categorical
>   File "C:\Python27\lib\site-packages\statsmodels\tools\tools.py", line 14, in <module>
>     from pandas import DataFrame
>   File "C:\Python27\lib\site-packages\pandas\__init__.py", line 15, in <module>
>     raise ImportError('C extensions not built: if you installed already '
> ImportError: C extensions not built: if you installed already verify that you are not importing from the source directory

The message is from pandas, actually. Take a look at this page [1] for suggestions.

Take care,
Don

[1] http://stackoverflow.com/questions/10158613/importing-confusion-pandas