adds the following columns to promext: ecu_brs_2, ecu_brs_4, ecu_brs_6 (recoded BRS items) ecu_brs_sum, ecu_brs_n, ecu_brs_total, ecu_brs_cat

primary_coding_suep_brs(trial_data, visitid)

Arguments

trial_data

A secuTrial data object

visitid

column name of visit ID in trial_data