Regression Equations, Generalized Least Squares, Correlation Matrices, Python, Statsmodels.
the Patsy syntax for defining each model’s equation. Each model also contains an intercept which is assumed i.e. we don’t need to explicitly state it in the model’s equation: regression_equations = ['RAR_Chevron ~ RAR_Energy', 'RAR_Halliburton ~ RAR_Energy', 'RAR_Alcoa ~ RAR_Metals', 'RAR_USSteel ~