Minimal Ordinary Least Squares Examples
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.. ipython:: python

   
   
   import numpy as np
   import statsmodels.api as sm
   
   nsample = 100
   x = np.linspace(0,10, 100)
   X = sm.add_constant(np.column_stack((x, x**2)))
   beta = np.array([1, 0.1, 10])
   y = np.dot(X, beta) + np.random.normal(size=nsample)
   
   results = sm.OLS(y, X).fit()
   print results.summary()
   
   
   
   
   
   