This convenience function returns the covariates and the choices of specific choice occasions.
get_cov(x, id, idc, idc_label)A subset of the choice_data data frame specified in prepare_data().
Either an object of class RprobitB_data or RprobitB_fit.
A numeric (vector), that specifies the decider(s).
A numeric (vector), that specifies the choice occasion(s).
The name of the column that contains the choice occasion identifier.