create formula to pass to inlabru::bru

create formula to pass to inlabru::bru

build_bru_formula(formula, .data, special_index)

Arguments

formula

formula with an hts() term

.data

tsibble data

special_index

special index term

Value

formula

Author

Nicholas Tierney

Examples

bru_form <- build_bru_formula(
  formula = pr ~ avg_lower_age + hts(who_subregion, country),
  .data = malaria_africa_ts,
  special_index = month_num
)
bru_form
#> pr ~ avg_lower_age + (who_subregion(month_num, model = "ar1", 
#>     group = .who_subregion_id, constr = FALSE) + country(month_num, 
#>     model = "ar1", group = .country_id, constr = FALSE))
#> <environment: 0x7fb8c81d8770>