Variance, Covariance Matrix, Linear Regression, Standard Error, Confidence Interval.
Standard errors of coefficient estimates= [[3.73115714e+00 nan 2.26140593e-01] [ nan 2.40232409e-03 nan] [2.26140593e-01 nan 2.69002839e-02]] The main diagonal elements are: [3.73115714, 0.00240232409, 0.0269002839] These values match the standard errors reported by Statsmodels’ in the training