moderndid.core.converters.dddaggresult_to_polars#

moderndid.core.converters.dddaggresult_to_polars(result: DDDAggResult) → pl.DataFrame[source]#

Convert DDDAggResult to polars DataFrame for plotting.

Parameters:

resultDDDAggResult: Aggregated DDD treatment effect result (eventstudy, group, or calendar).

Returns:

polars.DataFrame

DataFrame with columns:

event_time: event time (for eventstudy), group (for group), or time (for calendar)
att: ATT estimate
se: standard error
ci_lower: lower confidence interval
ci_upper: upper confidence interval
treatment_status: “Pre” or “Post” (for eventstudy aggregation)

Raises:

ValueError: If result is simple aggregation or missing required data.