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