gistfile1.txt

/usr/local/lib/python2.7/site-packages/statsmodels/compat/pandas.py:56: FutureWarning: The pandas.core.datetools module is deprecated and will be removed in a future version. Please use the pandas.tseries module instead.
  from pandas.core import datetools
/usr/local/lib/python2.7/site-packages/statsmodels/discrete/discrete_model.py:1214: RuntimeWarning: overflow encountered in exp
  return 1/(1+np.exp(-X))
/usr/local/lib/python2.7/site-packages/statsmodels/discrete/discrete_model.py:1264: RuntimeWarning: divide by zero encountered in log
  return np.sum(np.log(self.cdf(q*np.dot(X,params))))
Warning: Maximum number of iterations has been exceeded.
         Current function value: inf
         Iterations: 35
Traceback (most recent call last):
  File "regress_original.py", line 11, in <module>
    answer = logReg.fit()
  File "/usr/local/lib/python2.7/site-packages/statsmodels/discrete/discrete_model.py", line 1377, in fit
    disp=disp, callback=callback, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/statsmodels/discrete/discrete_model.py", line 204, in fit
    disp=disp, callback=callback, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/statsmodels/base/model.py", line 458, in fit
    Hinv = np.linalg.inv(-retvals['Hessian']) / nobs
  File "/usr/local/lib/python2.7/site-packages/numpy/linalg/linalg.py", line 513, in inv
    ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)
  File "/usr/local/lib/python2.7/site-packages/numpy/linalg/linalg.py", line 90, in _raise_linalgerror_singular
    raise LinAlgError("Singular matrix")
numpy.linalg.linalg.LinAlgError: Singular matrix