{"kind":"assistant","text":"smf.ols('lobby ~ post + treat_group + post:treat_group + log_pop').fit(cov_type='cluster', groups=fips) (CR1 errors with statsmodels' default G/(G-1)\u00b7(N-1)/(N-K) correction)","tool_calls":[{"args":{"cluster":"fips","controls":["post","treat_group","log_pop"],"dataset":"ref_panel","x":["post_treat_group"],"y":"lobby"},"id":"script_1","name":"infer__ols"}]}