group_codes.Rd
Return the factor levels associated with each group
group_codes(fit)
An object of class anova_bnp_model.
A tibble with the factor levels associated with each group and the following variables:
group: the group id.
x\(i\): the level of the \(i\)th factor for that group, for each \(i = 1, 2, \ldots\)