{"kind":"assistant","text":"sm.OLS(y, add_constant([TreatGroup, Post, DiD])).fit(cov_type='cluster', groups=kode_neil) (CR1 errors with statsmodels' default G/(G-1)\u00b7(N-1)/(N-K) correction)","tool_calls":[{"args":{"cluster":"kode_neil","controls":["TreatGroup","Post"],"dataset":"ref_panel","x":["DiD"],"y":"lcapital_exp_pc"},"id":"script_1","name":"infer__ols"}]}