import numpy as np
import statsmodels.api as sm
import matplotlib.pyplot as plt
import pandas
from scipy import stats

np.set_printoptions(precision=4, suppress=True)
pandas.set_printoptions(notebook_repr_html=False,
                        precision=4,
                        max_columns=12)

import statsmodels.api as sm

from statsmodels.formula.api import ols, rlm, glm, #etc.

from statsmodels.base import model

help(model.Model)

help(model.LikelihoodModel)

help(model.LikelihoodModelResults)

from statsmodels.regression.linear_model import RegressionResults

help(RegressionResults)