I have a dataframe as following: Year-Week Ticket Policy User 2022-35 12502 COMPLIED MX 2022-35 12502 NOT COMPLIED US 2022-35 12502 COMPLIED AL 2022-35 12502 COMPLIED BR 2022-35 12471 COMPLIED DE 2022-35 12409 COMPLIED US 2022-35 12409 NOT COMPLIED BR 2022-35 12406 COMPLIED MX When there are duplicate tickets, how could I standardize that each ticket has the same policy? E.g: If a ticket in a week has "NOT COMPLIED", the policy should be the same for that ticket no matter the week, so, should be something like this: Output Sample Year-Week Ticket Policy User 2022-35 12502 NOT COMPLIED MX 2022-35 12502 NOT COMPLIED US 2022-35 12502 NOT COMPLIED AL 2022-35 12502 NOT COMPLIED BR 2022-35 12471 COMPLIED DE 2022-35 12409 NOT COMPLIED US 2022-35 12409 NOT COMPLIED BR 2022-35 12406 COMPLIED MX Basically what I want is the dominance of NOT COMPLIED over COMPLIED when there are duplicated Tickets. Continue reading...