Fit pre/post regimes at a given break date and return a Wald statistic
.structural_break_at(
panel,
formula,
model,
unit_index,
time_index,
break_date,
test_terms,
...
)A list with fit_pre, fit_post, wald, df.
A prepared panel.
A dcce formula.
Character: base estimator.
The split point.
Optional subset of coefficient names.