{"kind":"assistant","text":"smf.ols('govt_prop ~ Treated * Post + pop_prop').fit(cov_type='cluster', groups=city) (CR1 errors with statsmodels' default G/(G-1)\u00b7(N-1)/(N-K) correction)","tool_calls":[{"args":{"cluster":"city","controls":["Treated","Post","pop_prop"],"dataset":"ref_panel","x":["Treated_Post"],"y":"govt_prop"},"id":"script_1","name":"infer__ols"}]}