Good afternoon, I installed from *https://pypi.python.org/pypi/statsmodels <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 <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 thing that i really don't understand is that in the shell window if i type import statsmodels.tsa i don't get any error, also if i type the help funcion i can see that in the package there is the function stattools that i need >>> import statsmodels.tsa >>> help(statsmodels.tsa) Help on package statsmodels.tsa in statsmodels: NAME statsmodels.tsa FILE c:\python27\lib\site-packages\statsmodels\tsa\__init__.py PACKAGE CONTENTS adfvalues api ar_model arima_model arima_process arma_mle base (package) descriptivestats filters (package) interp (package) kalmanf (package) mlemodel setup stattools tests (package) tsatools varma_process vector_ar (package) I will really appreciate your help thanks in advance, Eva
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