I am not able to get the result that i want :

i would like to have the same value of difference column for the same id but it depends on larger lengths for id_counter column .

when we compare the row no.3 and row now.4 for id = 6

so the output should be for first row

id_counter = 1 /lengths = 2 /ID = 6/ difference = good

and the other row for the same id will be still the same

and the same idea with all rows .

if the value in difference column is the same for the same_id so the program should do nothing and keep it .

i was thinking to do it with matcher but i could not get the correct result .

thanks for help fme 2018