| ave_coeff | Aggregate a specified set of terms and corresponding standard errors from an sdid model object |
| hosp | Hospitalization data |
| hosp_agg | Aggregated hospitalization data |
| id_tsi | Identify time-since-intervention |
| pick_time_refs | Identify time period referents within each cohort. |
| prep_data | Prepare a data frame to work with sdid() function |
| sdid | Fit a staggered difference-in-differences model |
| select_period | Retrieve a list of interaction terms from a sdid model representing the pre-intervention period |
| select_terms | Retrieve a list of interaction terms from a sdid model to be passed on for aggregation |
| summary.sdid_mdl | Summarize an sdid model |
| ts_plot | Generates time-series plots, optionally faceted by groups |