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